What to See in Groton - Top Sights and Attractions

Visitors can tour a historic submarine. USS Nautilus was the world's first operational nuclear-powered submarine and the first submarine to complete a submerged transit of the North Pole on 3 August 1958. Her initial commanding officer was Eugene "Dennis" Wilkinson, a widely respected naval officer who set the stage for many of the protocols of today's Nuclear Navy of the US, and who had a storied career during military service and afterwards.

Sharing a name with Captain Nemo's fictional submarine in Jules Verne's classic 1870 science fiction novel Twenty Thousand Leagues Under the Sea and the USS Nautilus (SS-168) that served with distinction in World War II, the new nuclear-powered Nautilus was authorized in 1951. Construction began in 1952, and the boat was launched in January 1954, attended by Mamie Eisenhower, First Lady of the United States, wife of 34th President Dwight D. Eisenhower; it was commissioned the following September into the United States Navy. Nautilus was delivered to the Navy in 1955.

Because her nuclear propulsion allowed her to remain submerged far longer than diesel-electric submarines, she broke many records in her first years of operation and traveled to locations previously beyond the limits of submarines. In operation, she revealed a number of limitations in her design and construction. This information was used to improve subsequent submarines.

Nautilus was decommissioned in 1980 and designated a National Historic Landmark in 1982. The submarine has been preserved as a museum ship at the Submarine Force Library and Museum in Groton, Connecticut, where the vessel receives around 250,000 visitors per year.^[2]

Lighthouse in Groton, Connecticut. Avery Point Light or Avery Point Lighthouse is a lighthouse in Groton, Connecticut, United States, on the Avery Point Campus of the University of Connecticut. Although construction was completed in March 1943, the lighthouse was not lit until May 1944 due to concerns of possible enemy invasion. Its original light consisted of eight 200-watt bulbs that were later replaced by a flashing green light in 1960. It was deactivated on June 25, 1967, when the United States Coast Guard Training Station moved to Governors Island. It is officially listed as the last lighthouse built in the state; the only other claimant is the replica Mystic Seaport Light.

The lighthouse deteriorated until it was declared a hazard by the University of Connecticut in 1997. A restoration effort was launched in 1999 through the American Lighthouse Foundation (ALF) and in 2000 by a new local chapter, the Avery Point Lighthouse Society. The restoration of the lighthouse began in 2001 and was completed in 2006, requiring a replica lantern and extensive structural repairs and replacement of the crumbling of the blocks. Two bills for $150,000 and $100,000 were appropriated and used to complete the restoration. The relighting and re-dedication of the lighthouse was held on October 15, 2006. The lighthouse was listed on the National Register of Historic Places in 2002.^[3]

Historical landmark in Groton, Connecticut. The Groton Monument, sometimes called the Fort Griswold Monument, is a granite monument in Groton, Connecticut. It is dedicated to the defenders who fell during the Battle of Groton Heights on September 6, 1781. The monument was originally 127 feet high, but it was changed in 1881 to commemorate the centennial of the Battle of Groton Heights; the cupola was removed and replaced by an iron-capped pyramid in emulation of the Bunker Hill Monument. The Groton monument bears a plaque describing the events of the Battle of Groton Heights, and another plaque with the names of the Americans who died in the battle. Lightning destroyed the capstone in 1918 and damaged the adjacent Monument House Museum which features exhibits about the Revolutionary War. Visitors can climb the monument and visit the museum from Memorial Day through Labor Day. The Groton Monument is located in Fort Griswold Battlefield State Park, which includes Fort Griswold.^[6]

Archaeological site in Groton, Connecticut. Gungywamp is an archaeological site in Groton, Connecticut, United States, consisting of artifacts dating from 2000-770 BC, a stone circle, and the remains of both Native American and colonial structures. Among multiple structural remains, of note is a stone chamber featuring an astronomical alignment during the equinoxes. Besides containing beehive chambers and petroglyphs, the Gungywamp site has a double circle of stones near its center, just north of two stone chambers. Two concentric circles of large quarried stones – 21 large slabs laid end to end – are at the center of the site.

The origin and meaning of the name is uncertain. According to The Hartford Courant, researchers have "associated the name, 'Gungywamp' with ancient Gaelic, Mohegan, Pequot, and Algonquin" and could mean anything from "church of the people", "place of ledges", "swampy place"; or "all powerful" and "white," respectively.

In 2018 the deed to 270 acres of the original 400-acre parcel was transferred to the State of Connecticut by the YMCA. Discussions were in progress on how to allow legal access to the property while preserving the archaeological sites.^[7]