Newport once had the reputation of "Sin City" due to its upscale gambling casinos on Monmouth street. Monmouth also had many men's stores, nice restaurants, and ice cream parlors. Investigations for racketeering pushed out the casinos, which were replaced by peep shows and adult strip clubs. Many of the old businesses disappeared when parking became difficult on Monmouth street and the commercial district opened on the hill of south Newport. In the 1980s and 1990s Newport made plans to develop its riverfront and core to focus primarily on "family friendly" tourism, instead of the "Sin City" tourism of the past. In May 1999 the $40-million Newport Aquarium opened, and the historic Posey Flats apartments were leveled in favor of the Newport on the Levee entertainment complex, which opened the following year.