Wikipedia
Kungstornen are twin tower skyscrapers, individually named Norra Kungstornet and Södra Kungstornet , in Norrmalm, Stockholm. The 16-storey Norra Kungstornet is and was built between 1919 and 1924; and the taller 17-storey, Södra Kungstornet was built between 1924 and 1925. Together, they are considered the first modern skyscrapers in Europe.
The tower pair marks a slight bend in the street, one block east of Hötorget, where it is crossed by the Malmskillnadsbron, a bridge in the course of Malmskillnadsgatan, to which they are adjacent. They are and of similar, but not identical, exterior design. Their construction was inspired by American models, particularly the architecture of Lower Manhattan of the time. The north tower was designed by Sven Wallander who also authored the 1919 master plan for Kungsgatan; the southern tower was designed by Ivar Callmander.