Dallas City Hall (OCP HQ)

Dallas City Hall is the seat of Dallas municipal government, located at 1500 Marilla in the Government District of downtown Dallas, Texas (USA). The current building, the city's fifth city hall, was completed in 1978 and replaced the Dallas Municipal Building. I.M. Pei’s modernist inverted pyramid design is a result from space requirements of city government. Public areas and citizen services required much less space than offices that ran the government; cantilevered building levels allowed for the upper levels to house the offices. The building slopes at a 34° angle, with each of the 7 above-grade floors being 9½ feet wider than the one below. This inclined façade interacts with the buildings it faces downtown and provides protection from the weather and Texas sun. You're not crazy if it look familiar-- it was the HQ of Omni Consumer Products in the movie Robocop.