Doppelkirche Schwarzrheindorf - Credit: Wikimedia Commons
The Doppelkirche Schwarzrheindorf () is a Romanesque church in Bonn, North Rhine-Westphalia, Germany. The church was once part of a Benedictine nunnery located at Schwarzrheindorf, now part of Bonn. The "double church" has an upper church dedicated to the Virgin Mary and a lower church dedicated to Pope Clement I. The church is famous for its fine 12th-century frescos. Read more on Wikipedia
Source: en.wikipedia.org