A distinctive building on the corner of Twarda and Sienna Streets in Warsaw, with two circular bay windows protruding above the roofline and culminating in openwork concrete pseudodomes. The infill, constructed in 1991-1992, was designed by Andrzej Kiciński. Several years ago, the building – alongside 57 others – was included on the Warsaw City Hall’s list of Contemporary Cultural Property from the turn of the 21st century, recommended for protection. Address: 44 Twarda Street (corner with Sienna Street), Warsaw.