This imposing seven-story apartment building was completed in 1937, ten long years after its cornerstone was placed, for the Czechoslovak Hussite Church. In addition to its unmistakable tower with chalice and Byzantine cross, there’s a marble-lined chapel and one of the largest columbariums (vaults for cinerary urns) in Europe, spread over two underground floors.
Source: https://www.prague.eu/en/object/places/2972/husuv-sbor-hus-congregational-house