Kolumba: An Architecture of Continuity

I visited the Kolumba Museum in Cologne in April 2025. It was the first building by Peter Zumthor that I had experienced in person even though I had admired his work for many years, particularly since discovering phenomenology and experiential approaches as a second-year architecture student back in 2013. His work became an important reference for the kind of architecture I was increasingly drawn to, concerned with materiality, atmosphere, sensory experience and the way a building is encountered through the body.

Seeing Kolumba was therefore something I had wanted to do for a long time. Experiencing it in person also made apparent qualities that are difficult to understand fully through photographs, drawings or architectural writing. I was captivated by the building from the beginning, particularly by its materiality and craftsmanship, its handling of light, thresholds and volume, and the extraordinary continuity between the architecture Zumthor inherited and what he chose to add. The building changes continually as you walk, through variations in temperature, brightness, scale, texture and atmosphere. These conditions are carefully composed, but they are experienced together. A change in light accompanies a threshold, a compressed passage alters the perception of the volume beyond it, the cooler air of the archaeological hall belongs to its material and spatial character. It is through these relationships that much of the building reveals itself.

A bit of background

Kolumba is built on the site of the former St Kolumba church, largely destroyed during the Second World War. The site contains archaeological remains from successive periods of construction, alongside Gottfried Böhm’s Madonna in the Ruins chapel, built within the surviving fabric after the war. Zumthor’s museum, completed in 2007, incorporates these layers into the new architecture. His description of the approach was deceptively straightforward: “we just go on building”. That idea captures much of what I admire about Kolumba. The building acknowledges that the history of a place does not end when a new architect begins working on it. The ruins, Böhm’s chapel and Zumthor’s intervention belong to a continuing architectural history, with each period remaining legible within the whole.

Building on what was already there

The archaeological hall is where this relationship becomes most tangible. Zumthor’s pale-grey brick rises directly from the surviving masonry of the church, enclosing the archaeological remains and Böhm’s chapel within a vast new volume. Sections of the external wall become a perforated brick screen, bringing air and filtered daylight into the space. The junction between old and new is expressed with remarkable clarity: you can read the different periods of construction in the masonry while understanding them as parts of the same building.

I have always been drawn to architecture that works with the existing fabric of a place in this way. There is an obvious connection here with ideas of place identity and continuity in environmental psychology. Places acquire meaning through accumulated histories, associations and patterns of use, and architectural intervention inevitably becomes part of that process. The idea of the architectural palimpsest is equally relevant: one period does not need to be erased for another to become visible.

Kolumba makes that accumulation unusually physical. The previous buildings determine the footprint, geometry and spatial experience of the museum. The archaeological remains are beneath your feet, surviving walls become part of the enclosure and Böhm’s chapel continues to occupy the site. Zumthor’s intervention adds another layer with its own architectural language and material presence. His phrase “we just go on building” feels almost literal when you are standing there.

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Light

Light is probably the quality most frequently noticable as one moves through the museum. There are bright galleries, darker cabinet rooms, top-lit spaces and areas where daylight arrives indirectly through openings, curtains or perforated masonry. The quality and direction of light changes continually, and at several points I remember seeing a luminous opening before I could see the room beyond it. I particularly liked those moments because light becomes part of the spatial sequence. A bright opening provides orientation and draws you forward, while the transition through darker spaces allows the eye to adapt before another room is revealed. Our perception of brightness is relational: the visual system continually adjusts to prevailing conditions, so the experience of a luminous gallery is partly determined by the space through which we have just moved. Zumthor uses this beautifully. Light is doing more than illuminating objects and surfaces; it contributes to orientation, anticipation and the perception of depth. It also changes the material character of the building. The pale brick, plaster, stone and timber respond differently as illumination changes, giving surfaces greater depth than their restrained palette might initially suggest.

Thresholds

The thresholds are almost as distinctive as the rooms themselves. Openings change in width, height and depth, and there are several moments where movement is compressed before another space is gradually or suddenly revealed. Sometimes the next room is visible only in part; elsewhere light provides the first indication of what lies beyond. Architectural theory has long treated the threshold as more than the line between two spaces. Ideas of liminality are useful here because the threshold is itself a spatial condition: a moment in which you have left one environment without fully entering the next. Zumthor gives these transitions enough depth and presence for that intermediate state to become perceptible. I found myself paying particular attention to them because they create anticipation without prescribing exactly how the building should be experienced. You are given glimpses and indications of what comes next, and curiosity carries you through. The doorway, passage or change in level becomes part of the experience of arriving in the room beyond it.

Volume

Volume is handled with similar precision. Some galleries are intimate and contained, while others extend considerably in height. The archaeological hall has an extraordinary vertical dimension, and several of the upper galleries use height and overhead light to create very different spatial characters. What interested me was the relationship between those volumes. We understand architectural scale through the body and through comparison with what we have recently experienced. A tall space feels different when entered from somewhere compressed, expansion becomes more perceptible because the body has registered the enclosure that preceded it. Kolumba uses this relationship repeatedly. A lower space can release into a much larger volume, and a monumental room can subsequently give way to something far more intimate. The section is therefore as important to the experience as the plan. Volume unfolds through movement, and the perception of each room carries a memory of the one before it.

Materiality

The material palette throughout Kolumba is restrained: pale-grey brick, plaster, stone, terrazzo, timber, steel, leather and textiles. What gives it richness is the precision with which those materials are detailed and the different tactile qualities they bring to individual spaces. This is where Juhani Pallasmaa’s writing on haptic architecture feels particularly relevant. We do not experience material solely through direct touch. Texture, weight, temperature and hardness can be anticipated visually because of our previous encounters with materials. Looking at stone, timber or rough masonry already carries an embodied understanding of how those surfaces might feel. That quality is very strong at Kolumba. The masonry has weight and texture, the plaster and stone surfaces have a very different precision, timber and leather introduce warmth and softness at particular moments. The craftsmanship becomes increasingly apparent at close range, in the way materials meet, openings are formed and details are resolved. Zumthor’s architecture has a tectonic clarity that I find particularly satisfying: material is allowed to behave as material, and the way something is constructed remains part of its architectural expression.

Temperature

Temperature was another condition that becomes very noticeable in the archaeological hall. The perforated masonry allows the space to remain more directly connected to the external environment, and the cooler air is immediately perceptible as you move into it from the more enclosed galleries. Thermal experience is inherently dynamic. Environmental psychology increasingly understands thermal comfort in relation to adaptation, expectation and the conditions experienced immediately beforehand rather than as a single ideal temperature. At Kolumba, the shift makes architectural sense because it coincides with changes in enclosure, material, light and scale. You can see why the environment feels different at the same time as you physically register the difference. I remember the cooler air as clearly as many of the visual qualities of the archaeological hall. It contributes to the presence of the ruins and to the sense of standing within a space that remains connected to external conditions. It is also one of the aspects of Kolumba that photographs cannot communicate. Temperature becomes architectural material because it participates in how the space is understood.

Atmosphere

Zumthor has written extensively about atmosphere, and Kolumba makes it easy to understand why the idea occupies such a central position in his work. Atmosphere emerges through the relationship between material, light, temperature, proportion, acoustics, objects and the movement of the body through space. None of those conditions operates independently. Gernot Böhme’s writing on atmosphere is useful here too. He describes atmosphere as something that emerges between the qualities of an environment and the person experiencing it. I like that understanding because it allows architecture to shape experience without assuming that everyone will experience a place in exactly the same way.

The atmosphere of Kolumba changes considerably throughout the museum. The archaeological hall is cooler, more porous and monumental, some galleries are luminous and expansive, while others are enclosed and concentrated, the Reading Room has a much warmer and more intimate character. Yet there is a coherence across these different conditions. The atmosphere develops through the architecture itself: the depth of a wall, the position of an opening, the height of a ceiling, the grain of timber, the temperature of the air and the amount of daylight entering a room.

This attention to atmosphere is one of the qualities I most admire in Zumthor’s architecture. The building is designed with an understanding that architecture is encountered through the body as much as it is understood visually.

The Reading Room

One of my favourite spaces in Kolumba was the timber-lined Lesezimmer on the upper level. I did not know its purpose when I entered it. I simply remember finding it and immediately wanting to stay.

The room is materially quite distinct from much of the museum. Its walls, ceiling, entrance door and integrated bench are clad in highly figured khava veneer, with a sipo mahogany floor and leather seating. Daylight enters through a large window filtered by fine curtains. After the pale masonry, plaster and stone of the galleries, the depth and warmth of the timber changes the character of the space considerably. There were quite a few people in the room when I visited, yet it still felt calm and intimate. In retrospect, there are several environmental qualities that probably contributed to that experience. Jay Appleton’s idea of prospect and refuge is relevant: the large window provides visual connection beyond the room, while the timber enclosure and contained proportions create a stronger sense of refuge. The furniture also changes the behavioural character of the space. It is arranged for sitting, reading and conversation, giving people permission to remain rather than continue circulating through the museum.

I think that is why my memory of the room extends beyond its beautiful materiality. Its architecture supports a different pace of occupation. I remember sitting there for some time and feeling that I could have stayed considerably longer. For all the monumental qualities of Kolumba, this room has an almost domestic comfort that I found particularly appealing.

Continuity

Looking back at the visit, continuity is the idea that connects much of what I admired about Kolumba. There is the obvious continuity of the historic fabric, where successive periods of construction remain present within the contemporary building. There is also a spatial continuity that unfolds through movement.

Gordon Cullen wrote about serial vision in relation to townscape: the experience of place as a sequence of revelations encountered by a moving observer. I think there is something relevant in that idea at Kolumba. I remember individual spaces, but I remember their relationships just as clearly: seeing light through an opening, moving through a compressed threshold, emerging into a much taller volume, feeling the temperature change around the archaeological remains and later sitting within the warmth of the Reading Room.

The building therefore contains two very different scales of continuity. One unfolds across centuries, through the accumulated architecture of the site. The other unfolds over the duration of a visit, through the sequence of spaces experienced by the person moving through it.

I have always admired architecture with a strong material presence, careful craftsmanship, thoughtful concepts, continuity with history and an honesty in its tectonics. I think the experience those structures create deserves the same level of attention. Kolumba brings those qualities together particularly well. Its materials, construction, light, environmental conditions and spatial sequence all contribute to how the building is inhabited and remembered.

It is the kind of architecture I find myself wanting to spend time in, and a building I would very happily return to.