The Nikolaj Contemporary Art Center is an arts centre in Copenhagen which occupies the former St. Nicholas Church, one of the city's most conspicuous landmarks. It is situated on Højbro Plads a few steps away from Amagertorv and Strøget. The church building is famous for its fanciful Neo-Baroque 90-meter long spire. The tower offers some of the best views of the city centre.

The original church building was constructed in the early thirteenth century and was Copenhagen's third oldest church. In 1530, the ex-monk Hans Tavsen preached the first Lutheran sermon within Copenhagen in St Nicholas Church. The fire of 1795 burned down most of the building, and from 1805, it was no longer an official church. Though church ruins were demolished, the sturdy tower remains standing in the present day. Butcher stalls occupied the area around the tower until the second half of the 1800s when they were closed. The current building, which opened in 1912, is by a design of the architect, Hans Christian Amberg, representing a modern reconstruction of the destroyed church. The current spire is also a modern reconstruction of the original, financed in 1909 at the initiative and expense of the brewer Carl Jacobsen. He also financed the 1915–1917 repairs.

The tower of Sankt Nicolai Kirke, 1900
The tower has served as a naval museum and its attic was at one time a library. It was also the focus of Hans Christian Andersen's drama, Love of Nicolai Tower performed in 1829 at the Royal Theatre. When the internationally notable Danish sculptor Bertel Thorvaldsen returned to Copenhagen in 1838 after living and working for 40 years in Rome, a flag was hoisted on the tower when his ship approached to alert residents of his arrival. The art center's focus is on Danish and international modern art.[3] Within the building there is also a cafe.