Manuel Herz Architects creates synagogue that opens like a pop-up book Swiss studio Manuel Herz Architects has created a pop-up synagogue at Babyn Yar in Ukraine to mark the 80th anniversary of a massacre that took place during the Holocaust. Named the Babyn Yar Synagogue, the place of worship consists of two large walls that can be manually opened and closed like a pop-up book. The synagogue opens like a pop-up book The synagogue was built near Kyiv at the site of the Babyn Yar massacre, where around 34,000 Jews from the city were killed by the Nazi party over two days in 1941 – one of the largest mass killings during the Holocaust.