Cities in Southeastern Europe do not wait to be read. They accumulate, layer upon layer of socialist planning, post-socialist disruption, and the quieter, less legible work of citizens remaking space from the ground up. Here, space and legacy insist on their own terms. What happens to architectural research when the cities that we observe already seem to know something our discipline has not yet learned to see?
Cultural institutions represent an active field for unbuilt architectural exploration, reflecting how architects continue to question the role of public buildings in shaping urban life. In this Unbuilt edition, submitted by the ArchDaily community, the selected proposals bring together a range of projects that engage with museums, exhibition centers, and diplomatic buildings as sites of public encounter. Rather than treating these programs as fixed types, these projects approach them as evolving spatial settings through which cities engage with history, knowledge, and representation.
Across varied geographies, from Wenzhou and Helsinki to Belgrade, Debrecen, Mexico City, and Nürnberg, the proposals explore different responses to contemporary cultural architecture. They range from adaptive reuse of industrial and ideological structures to new buildings embedded in waterfronts, parks, and residential neighborhoods. While some emphasize continuity with historical contexts, others experiment with lighter structures, environmental strategies, or new relationships between interior programs and the public realm. Together, they offer a snapshot of how cultural institutions are being reimagined in diverse urban conditions.
The demolition of Hotel Jugoslavija, a notable example of modernist architecture in Belgrade, has begun, making way for new development in the city's rapidly changing urban landscape. Constructed in 1969 in New Belgrade, the hotel was once among the largest and most prominent in Europe, reflecting the aspirations of the Socialist Federal Republic of Yugoslavia (SFRY) during its peak. Designed by Zagreb architect Lavoslav Horvat, the eight-story hotel was a key project under the leadership of Josip Broz Tito. It showcased the modernist principles of the time, combining functionality with imposing architectural forms. Its interiors featured luxurious details, including a Swarovski chandelier comprised of 40,000 crystals, which underscored the building's significance as a flagship of Yugoslavia's international presence.
Following an international design competition, the winning proposal for the new Nikola Tesla Museum in Belgrade, Serbia, was announced. Designed by Zaha Hadid Architects (ZHA) in collaboration with Serbia's Bureau Cube Partners, the project seeks to transform the historic Milan Vapa Paper Mill into a contemporary cultural center that celebrates Nikola Tesla's scientific achievements while preserving the site's architectural heritage.
Following an international competition, London-based architecture studio AL_A has been selected to design the new Belgrade Philharmonic Concert Hall. The project will become a landmark for the Serbian capital, as it represents the biggest cultural investment in the region in the last decades. Located near the historic Palace of Serbia in New Belgrade, the Concert Hall features multiple performance, rehearsal, and creative spaces, including a 1,600 seats symphonic concert hall. The design team led by AL_A also includes landscape designers VDLA, engineers AFA Consult, and local architects Zabriskie. They are joined by Arup, who coordinates the acoustic and theatrical design.
