Sammlung Boros

The Sammlung Boros is a private collection of contemporary art owned by Karen and Christian Boros, displayed since 2008 in the Reichsbahnbunker Friedrichstraße in Berlin-Mitte, Germany. Housed in a converted Second World War air-raid shelter, the collection has become one of Europe's most distinctive private museums, drawing significant public attendance through its unique integration of contemporary art within a historically charged brutalist structure. The venue is accessible only through guided tours, reflecting its hybrid character as both a private residence and public exhibition space.

Christian Boros, a media entrepreneur and art patron, acquired the Reichsbahnbunker Friedrichstraße in 2003 and subsequently transformed its five floors into a private museum. The collection opened to the public in 2008, with the Boros Foundation now led by Raoul Zoellner. The presentation format has followed a cyclical structure of major exhibitions, each lasting approximately four years. The first iteration, Bunker Berlin #1 (2008-2012), attracted over 120,000 visitors across 7,500 guided tours. Bunker Berlin #2 (2012-2016) drew over 200,000 visitors in 9,000 tours. Bunker Berlin #3 (2017-2021) reached 220,000 visitors across 16,000 tours. The fourth presentation, Bunker Berlin #4, opened in May 2022 and is scheduled to run until 2026.

The Boros Collection encompasses contemporary works in sculpture, photography, and painting by international artists, with a focus on works from 1990 to the present. The collection is presented across 3,000 square metres in approximately 80 rooms on five floors. A defining characteristic of the collection's display is the inclusion of site-specific works that engage directly with the bunker's varied interior spaces and their complex history. Each exhibition cycle incorporates newly acquired works alongside pieces drawn from earlier periods of the collection, creating dialogues between recent acquisitions and established holdings.

The fourth presentation, which opened in May 2022, features newly acquired works shown in conjunction with pieces from the early 2000s. While specific individual works are not detailed in the available sources, the collection's exhibition strategy emphasizes the interplay between recent acquisitions and earlier holdings, with particular attention to how works respond to the bunker's architectural and historical specificities.

The Reichsbahnbunker Friedrichstraße is a former air-raid shelter built during the Second World War for the Reichsbahn, the German national railway. After the war, the structure served multiple functions including a prison, a storage facility, and a techno club. Architect Jens Casper led the conversion of the bunker into exhibition spaces, creating what the collection describes as a compendium of individual rooms that interconnect across multiple floors. The architectural intervention preserves a deliberate tension: some rooms were transformed into classic white cube gallery spaces, while others retain visible traces of the bunker's previous incarnations. This layered approach allows the building's wartime and postwar histories to remain present within the contemporary art viewing experience.

The Sammlung Boros is located in the Mitte district of Berlin, Germany. As a private collection, it remains the property of Christian and Karen Boros. Public access is restricted to Thursdays through Sundays, and only through guided tours that require advance reservation via the collection's website. This limited access model reflects the building's continued function as a private residence alongside its public exhibition role. The collection's website is https://boros-collection.com/en/.