This is the Kaiserdom St. Bartholomäus (Emperor's Cathedral St. Bartholomew) in Frankfurt am Main, Germany. It is the largest religious building in the city and the former coronation place of the roman-german emperors. Pictured here is the altar.
This HDR is composed out of 6 individual exposures, especially in order to get the windows' exposure right. This picture is probably best viewed Large On Black.
#57 on Explore on 2008-09-19.