Skansen Kronan is a historic fortress located on a hill in the Haga neighbourhood of Gothenburg. 

It was built in the 17th century to defend the city against attack from the east, and it is considered to be one of the most important cultural landmarks in the area.

The fortress was completed in 1697 and was in active use as a military facility until the mid-20th century. 

Skansen Kronan is built in the shape of a hexagon and is made of stone and brick. It has two levels, with a large central courtyard and four bastions that provide commanding views of the surrounding area. The fortress was originally armed with cannons and was a key part of the city's defences against invasion.

 it was designed by the architect Erik Dahlberg, who was also responsible for the construction of several other fortifications in the area.

Today, Skansen Kronan is open to the public as a museum, and visitors can explore the fortress and learn about its history. The museum features exhibits on the history of the fortress and its role in the defence of Gothenburg, as well as displays on the daily life of soldiers who were stationed there.

Skansen Kronan is also a popular venue for events and conferences, and the fortress can be rented out for private functions. The building is an important part of Gothenburg's cultural heritage, and it is considered to be one of the city's most iconic landmarks.