includes the world's first undersea roundabout in the middle of the network. A fourth tunnel, the Sandoyartunnilin, is still under construction. Dresdner Hof Opening on 26 January 1990, the Dresdner Hof, which was built by ABV following its merger with Johnson Construction Company in 1988, was one of the last Stasi controlled foreign exchange hotels built in East Germany. Today, it is called the Hilton Dresden. Notes References Construction and civil engineering companies of Sweden Companies based in Solna Municipality Companies listed on Nasdaq Stockholm Swedish companies established in 1998 Construction and civil engineering companies established in 1998