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Harbor Defense Museum at Fort Hamilton
A U.S. Army museum in Fort Hamilton's historic caponier, with exhibits on coastal defense and the Battle of Brooklyn. Open weekdays 10 AM–4 PM; call 718-630-4349 before you go. Adults 18 and over need photo ID at the 101st Street gate.
56°F · Mostly Sunny (forecast, Brooklyn)
✓ Verified Nov 10, 2026
Why this place: Free · repeats, so you can go another time · at Harbor Defense Museum, Brooklyn · official listing on harbordefensemuseum.com · checked Nov 10
IS IT REALLY FREE?
Free. Free
WHEN & WHERE
Every Tue, Wed, Thu, Fri · 10 AM–4 PM
Free
Harbor Defense Museum
A U.S. Army museum in Fort Hamilton's historic caponier, with exhibits on coastal defense and the Battle of Brooklyn. Open weekdays 10 AM–4 PM; call 718-630-4349 before you go. Adults 18 and over need photo ID at the 101st Street gate.
Tuesdays, Wednesdays, Thursdays, Fridays · 10 AM–4 PM. Free. Check the official page before you go; details can change.












