What is the name of the Island located in San Francisco Bay, 1.25 miles offshore, with facilities for a lighthouse, a military prison, and the Parade Grounds, a large concrete open area?
Parade Grounds The Parade Grounds is a large concrete open area on the south end of Alcatraz Island, off the coast of San Francisco, USA. They lie beyond Building 64. They were originally built in the 1860s on a barren site by the U.S. military who used the site for military drills and parades.
Venetian Islands, Florida The Venetian Islands are a chain of artificial islands in Biscayne Bay in the cities of Miami and Miami Beach, Florida. The islands are, from west to east: Biscayne Island (Miami), San Marco Island (Miami), San Marino Island (Miami Beach), Di Lido Island (Miami Beach), Rivo Alto Island (Miami Beach), and Belle Isle (Miami Beach). Flagler Monument Island remains an uninhabited picnic island, originally built in 1920 as a memorial to railroad pioneer Henry Flagler. The islands are connected by bridges from the Miami mainland to Miami Beach.