Alcatraz Island San Francisco, CA

No longer a prison for some of America's most dangerous offenders, Alcatraz is part of the National Park Service and is a must-see for visitors to the city. Once on the island, you will certainly be captivated by its history and its incredible beauty. Take your camera because regardless of where you're situated, a photo opportunity awaits. Also, dress in layers (even during the summer months) because the island can be breezy and inside the prison it is cold and damp. If you want to scare your kiddies into good behavior, there is a cellhouse audio tour of Alcatraz. Ferries to Alcatraz depart from Pier 33, and are run by Alcatraz Cruises. All tours start at 9 a.m. See the  website for up-to-date scheduling and complete visitation particulars.