Severinstorburg

St. Severin' is the second tallest of Cologne's Romanesque churches (79 m), dedicated to the patron saint of rain who is said to protect the city from drought. Visitors can walk beneath the elevated 19th-century shrine to receive a "blessing from above." The church is a treasure trove for history buffs, housing the largest preserved medieval silk fabric in the world (4th–10th century) and a crypt built over ancient Roman burial sites.

North Rhine-Westphalia's only ethnological museum, it has a fine collection of Amerindian and Austro-Polynesian artefacts.

The church belonged to the local charterhouse (a monastery of the Carthusian order) until 1794, when the monastery was closed and the church was used variously as a warehouse or a military hospital until the 1920s, when it was restored to its religious function by a local Protestant community, whom it serves as a church until today. After reconstruction, it features an impressive pipe organ array with glockenspiel.

The former post office built from red brick in 1906 is now used as a theatre.