City (pop., 2000: 87,933), southeastern Florida, U.S. It is situated on an island across Biscayne Bay from Miami .
Until 1912 the site was a mangrove swamp. John S. Collins and Carl F. Fisher pioneered real estate development and built a bridge across the bay; the area was dredged to form an island measuring 7.4 sq mi (19 sq km), with an 8-mi (13-km) beach. The city, incorporated in 1915, is now a luxury resort and convention centre. It is connected with Miami by several causeways and is noted for its Art Deco architecture.