The Romer (German for "Roman") is a medieval building in Frankfurt am Main and one of the city's most important landmarks. It has been the city hall (Rathaus) for 600 years. The Haus Romer is actually the middle building of a set of three located in the Romerberg (a plaza). The Romer merchant family sold it together with a second building, the Goldener Schwan (Golden Swan), to the Frankfurt city council in 1405.