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- Natalie M.September 4, 2012Every hour (on the half hour) go to the Ranger table for tickets to the rooftop tour (which will be an hour later but there is plenty to do) on the weekend. It's worth it for the views of NYC.Upvoted 1 week ago
- Landmarks Preservation CommissionJuly 26, 2013Designed by Lieutenant Colonel Jonathan Williams it was constructed of sandstone with walls measuring 8 feet thick at the base. The castle was designated a City landmark in 1967.
- MetroFocusApril 10, 2012The circular castle, designed by the head of the Army Corps of Engineers in 1807, was used as a jail for Confederate troops and AWOL Union troops during the Civil War. Read more on MetroFocus Read more
- SusumuAugust 29, 2016You can only enter the roof on a guided tour every hour. The last tour on weekend is 5:30pm.
- James COctober 10, 2016Cool national park small but informative really nice views of the harbor and city.
- Carmen Gloria RiquelmeJune 16, 2016It used to be a prision, good a nice view but still a prision. :(