The Park Service website (
visit link) informs us:
"Built to keep people out; now welcomes millions in.
Located at the southern tip of Manhattan Island, Castle Clinton stands where New York City began, and represents not only the city’s growth, but the growth of a nation. Initially intended to prevent a British invasion in 1812, the fortification has transformed over the years to welcome theatergoers, immigrants, sightseers, and now, millions of visitors to New York Harbor.
and Wikipedia (
visit link) adds:
"Castle Clinton or Fort Clinton, once known as Castle Garden, is a circular sandstone fort now located in Battery Park at the southern tip of Manhattan Island, New York City, in the United States. It is perhaps best remembered as America's first immigration station (predating Ellis Island), where more than 8 million people arrived in the U.S. from 1855 to 1890. Over its active life, it has also functioned as a beer garden, exhibition hall, theater, public aquarium, and finally today as a national monument...
Today, Castle Clinton stands approximately two blocks west of where Fort Amsterdam stood almost 400 years ago, when New York City was still known by the Dutch name New Amsterdam.
Construction began in 1808 and was completed in 1811. The fort, known as West Battery (sometimes South-west Battery), was designed by architects John McComb Jr. and Jonathan Williams. It was built on a small artificial island just off shore.
West Battery was intended to complement the three-tiered Castle Williams on Governors Island, which was East Battery, to defend New York City from British forces in the tensions that marked the run-up to the War of 1812, but never saw action in that or any war. Subsequent landfill expanded Battery Park, and incorporated the fort into the mainland of Manhattan Island.
As with all historic areas administered by the National Park Service, Castle Clinton National Monument was listed on the National Register of Historic Places on October 15, 1966."