Manhattan · NYC landmark
Castle Clinton National Monument
Battery Park · Manhattan, New York City
A surviving harbor fort later used as an entertainment hall, immigrant depot and aquarium, with a public courtyard and exhibits.
Save and Boost open this place in the interactive map. An account is needed to save; Boost opens its options before payment.

NYFE Summary
Long before Ellis Island opened, this former fort processed immigrants arriving in New York. More than eight million people passed through Castle Garden between 1855 and 1890. It had already served as an entertainment venue, where Jenny Lind made her American debut.
The building later housed the New York Aquarium. Saved from demolition, it was restored as a fort by the National Park Service. Visitors can enter the open courtyard and see exhibits about its changing uses.
NYFE summary from the official history and visitor sources linked below.
Plan a visit
Check the operator’s current opening, admission and access information before travelling. Historic status does not guarantee public access to every interior.
Official visitor information ↗