In the middle of Breitscheidplatz is the church dubbed the "Hollow Tooth" (Hohler Zahn) by locals. The truncated bell tower is all that remains of the neo-Romanesque church, built between 1891 and 1895 by Franz Schwechten and dedicated to Emperor William I. The new church and bell tower (1959-61) were designed by Egon Eiermann; with the original church they form one of the emblems of Berlin. The blue stained-glass windows inside the church were made in Chartres.