Nestled within Király utca 21 stands one of Budapest’s most elegant staircases, housed within the oldest surviving building on the street. Crafted by Mihály Pollack for Ferenc Dlauchy, a prosperous locksmith and frequent collaborator of the architect, this architectural masterpiece has weathered the test of time. However, the same cannot be said for many neighboring buildings. Király utca 23 fell victim to bombing during World War II, while across the street, another apartment house designed by Pollack, though designated as a historical monument, was demolished in the 1990s to make room for a modern structure.