River City, Residential complex in South Loop, Chicago, US

River City is a mixed-use building at 800 South Wells Street in Chicago's South Loop, completed in 1986 to a design by Bertrand Goldberg. Two serpentine residential towers of 7 to 14 stories, built of poured-in-place concrete shells with rounded balconies, hold 449 units and rise from a four-story post-and-beam plinth. Dark metal letters reading "RIVER CITY" top the central tower, and the lower levels open into deep arched recesses on columns.

Bertrand Goldberg's first plan called for clusters of three 72-story towers, joined every 18 stories by triangular platforms and meant to house up to 30,000 families. Chicago's Plan Commission rejected it, and the scheme was redesigned over the following decade into the two serpentine towers completed in 1986. Plans to extend the building north and south failed for lack of financing.

The name comes from the building's site beside the Chicago River. The 10-story skylighted atrium linking the two towers is called River Road, and residents reach a private one-acre park, Skyline Park, on the roof of the four-story base. In 2019 preservationists objected when the raw concrete of the River Road interior was painted white; Bertrand Goldberg's son Geoffrey, an architect, published an essay calling it a "diminution" of his father's intent.

The complex sits at the southern edge of the Loop and is easily reached on foot or by public transit. The pedestrian pathways between buildings are open to the public, and the site offers views of the river and the city skyline.

The 2006 film Stranger than Fiction used apartment 1702/1704 for Will Ferrell's character's home; it is a three-bedroom triplex where architect Bertrand Goldberg briefly lived, joined with a studio. In the 2014 film Divergent, the Abnegation set was built on vacant land just north of River City, which appears to loom over the modest housing.