The USS Constitution is America's oldest commissioned warship. It is a three-masted, wood hulled, frigate. The USS Constitution was one of six original warships authorized for construction by the Naval Act of 1794. It designed by Joshua Humphreys, named by George Washington, and launched in 1797.
The USS Constitution saw action in the war against the Barbary pirates during the First Barbary War. It later served with extradordinary valor in the War of 1812. She captured numerous merchant ships and defeated five British warships: HMS Guerriere, Java, Pictou, Cyane, and Levant. The battle with Guerriere the USS Constitution earned the nickname "Old Ironsides."
Today, visitors to the Boston Naval Shipyard can obtain free tickets to board and tour the vessel. The schedule for 2017 is:
April 15 – July 10
Tuesday-Friday | 2:30 – 6:00
Saturday & Sunday | 10:00 – 6:00
Closed Monday & May 9th for scheduled maintenance
July 10 – Early September
Closed due to undocking schedule
September – November 05 (Tentative)
Open Tuesday-Friday | 2:30 – 5:00
Open Saturday & Sunday | 10:00 – 5:00
November 06 – April 15
Open Thursday & Friday | 2:30 – 4:00*
Open Saturday & Sunday | 10:00 – 4:00*
Closed Monday – Wednesday
*Last tour leaves at 3:30
The Ship is closed Martin Luther King Jr.’s Birthday, Thanksgiving Day, Christmas Day, and New Year’s Day.
Source : http://www.waymarking.com/waymarks/WMVPNA_USS_Constitution_Charlestown_MA