The fort was renamed in 1815 to honor DeWitt Clinton, a former Mayor and Governor of New York.
During its tenure as the New York Aquarium, it housed the first sea turtles and manatees ever displayed to the public in a formal institution.
P.T. Barnum once used the site as a concert hall to introduce Swedish opera singer Jenny Lind to American audiences.
The fort was originally built on a small island off the coast, but subsequent landfill projects integrated it directly into the Manhattan shoreline.
In the 1940s, the fort was slated for demolition to make way for a bridge that was never built, leading to a major public preservation battle.
Castle Clinton National Monument is a circular sandstone fort located in Battery Park that served as the primary processing station for millions of immigrants before Ellis Island opened. Originally built as West Battery in 1811 to defend New York Harbor during the War of 1812, it has functioned as an entertainment venue, an aquarium, and a immigration depot. The site is a National Park Service property featuring a small museum detailing its architectural and social history. It serves as the primary ticketing location for ferries departing to the Statue of Liberty and Ellis Island. The structure represents one of the few surviving examples of early 19th-century coastal fortifications in the United States.
The interior courtyard, which provides a view of the original stone walls framing the sky with the modern skyscrapers of the Financial District visible above.
Check the ferry ticket queues before exploring the museum, as lines for Liberty Island can become very long by midday.
Visit the interior courtyard to see the contrast between the historic masonry and the surrounding modern city skyline.
Use the free National Park Service pamphlets available at the entrance to understand the multiple phases of the building's architectural reuse.
Do not purchase ferry tickets from street vendors or ticket scalpers located near the park entrance; only use the official site ticket windows or authorized online channels.
Open daily, but ticket booth operations may close earlier than the monument grounds.
