Yrjönkatu swimming hall was opened in 1928 and for a long time it was the only one in the town. It is the most legendary swimming hall in Helsinki and known for allowing only naked swimming. Since 2001 the bathing suits have been allowed but men and women still have their own shifts.

The architecture of the building is very impressive and beautiful representing the 1920´s classism. It was renowated in 1999 to it´s original glory.