The 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
Tours every hour from 11:30 AM till 3:30 PM. About 30 minutes. Get some history in the round at the best-preserved circular fortification in the nation. On weekends the Castle is open until 5:30 PM with an additional tour at 4:30 PM.