April 25–26 brings back the Festival of Architecture Day and Night for its second edition, spread across multiple venues with more than 90 programs. Expect building tours, urban walks, and guided sessions that pull back the curtain on spaces usually off-limits. It’s a citywide invitation to poke around, ask questions, and see how Budapest (Budapest) is changing in real time.
Inside City Hall
One of the headline attractions: guided access to City Hall. Visitors can explore the historic core, learn how the building has evolved, and hear what’s next for a site that still shapes civic life. It’s a rare look at the mechanics behind municipal power and the architecture that frames it.
Underground, Rebuilt
The M3 metro line and its reconstruction get the spotlight in a series of walks that go beyond glossy before-and-after shots. Guides break down design choices, engineering fixes, and accessibility upgrades, tracing how decades-old infrastructure was adapted for the present—and for the next wave of commuters.





