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Landmarks on the island include the Main Cellhouse, Dining Hall, Lighthouse, the ruins of the Warden's House and Social Hall, Parade Grounds, Building 64, Water Tower, New Industries Building, Model Industries Building, and the Recreation Yard.
Nov 30, 2022 · Completed in 1912 with 600 single cells, each with toilet and electricity, the Cellhouse was the largest reinforced concrete building in the world. In 1915 Alcatraz was changed from a military prison to "Pacific Branch, U.S. Disciplinary Barracks."
Located 1.5 miles off the coast of San Francisco, Alcatraz Island encompasses a total of 22 acres in the center of San Francisco Bay. Opened to the public in fall 1973, Alcatraz is one of America's most popular national park sites and currently welcomes more than 1.4 million visitors each year.
2 days ago · Alcatraz Island, also known as ‘The Rock,’ a rocky island in San Francisco Bay, off the coast of California, in the United States. From 1934 to 1963, a facility on the island served as a federal prison for some of the most dangerous civilian prisoners.
- The Editors of Encyclopaedia Britannica
It is the tallest building on the island, at a height of 94 feet (29 m) with a volume of 250,000 US gallons (950 kL) gallons of fresh water. It was used to store potable water for drinking, water for firefighting, and water for the island's service laundry facility.
Jun 13, 2018 · It was to be used only as a military prison and it included a hospital on the floor above the Dining Hall. The medical center included full surgical dental and laboratory facilities. The current cell-house, when completed in 1912, was the largest reinforced concrete structure in the world.
Feb 28, 2024 · Scientists and technology experts spent three weeks in December using cameras, drones and a robot dog to gather four trillion bytes of data to build the first 3-D map of the entire island in full...
