Plymouth Center Historic District

Plymouth is a town in Litchfield County, Connecticut, United States, located within the Naugatuck Valley Planning Region. It is named after Plymouth, Devon, England. The population was 11,671 at the 2020 census, down from 12,243 at the 2010 census. The town of Plymouth includes the villages of Plymouth Center, Terryville and Pequabuck.

The Railroad Museum of New England is a railroad museum based in Thomaston, Connecticut. Through its operating subsidiary known as the Naugatuck Railroad, the museum operates excursion and freight trains on the Torrington Secondary between Waterville and Torrington. The Railroad Museum of New England name and trademark was adopted in 1987, as a result of reassessing the Connecticut Valley Railroad Museum's goals and visions (CVRM had been founded in the mid-1960s). Home to one of the largest collections of preserved historic railroad equipment in New England, RMNE and its predecessor organizations have been active since the 1960s.

Trinity Church is a historic episcopal church at 160 Main Street in Thomaston, Connecticut. Built in two stages, 1871 and 1880, to a design by Richard M. Upjohn, it is a good example of Gothic and Stick Style architecture. The church was listed on the National Register of Historic Places in 1984. It is now part of a merged parish with St. Peter's of Plymouth.

The Thomaston Opera House is a historic performance venue and the town hall of Thomaston, Connecticut. Located at 153 Main Street, it was built in 1883-85, and is a good local example of Romanesque architecture. The theater in the building has served as a performance and film venue since its construction. It was listed on the National Register of Historic Places in 1972. The opera house's principal tenant is now the Landmark Community Theatre.

The Hose and Hook and Ladder Truck Building is a historic former firehouse on Main Street in Thomaston, Connecticut. Built in 1882, it is a fine example of Late Victorian civic architecture in brick. It was listed on the National Register of Historic Places on January 4, 1982. After serving as a firehouse for about a century, it has been converted into an art gallery.

Terryville High School is a public high school that serves students living in Plymouth, Terryville, and Pequabuck, Connecticut. It is located at 33 North Harwinton Avenue in Terryville, Connecticut. It is the only school in town to offer grades 9−12. Originally located at former Prospect St School then, located at the site of what is now Eli Terry Jr. Middle School, a new Terryville High School building was completed and opened in January 2008.

Thomaston is a town in Litchfield County, Connecticut, United States. The town is part of the Naugatuck Valley Planning Region. The population was 7,442 at the 2020 census. The urban center of the town is the Thomaston census-designated place, with a population of 1,928 at the 2020 census.

The Reynolds Bridge in Thomaston, Connecticut is an open-spandrel concrete arch bridge carrying Waterbury Road (unsigned State Road 848) over the Naugatuck River. Built in 1928, it is one of a small number of surviving open-spandrel bridges in the state. It was listed on the National Register of Historic Places in 2004.

The Terryville Waterwheel is a historic industrial water wheel at the Pequabuck River and Main Street in the Terryville section of Plymouth, Connecticut. Probably built in 1851 for a local clockmaker, it is one of three surviving 19th-century water wheels in the state. It was listed on the National Register of Historic Places listings in 2002.

Waterbury Airport (FAA LID: N41), is located in Plymouth, Connecticut, United States.

Terryville is a census-designated place (CDP) in Litchfield County, Connecticut, United States, and is the largest village within the town of Plymouth. In the 2010 census, Terryville had a population of 5,387, out of 12,243 in the entire town of Plymouth. The village is named for Eli Terry Jr., the son of the well-known clockmaker Eli Terry Sr. Terryville is also home to the Lock Museum of America. There is a water wheel located in downtown Terryville that is dedicated to the son of Eli Terry Sr.

The Lock Museum of America houses an extensive lock collection that includes 30 early era time locks, escutcheon plates from safes, a large number of British safe locks, door locks, padlocks, handcuffs and keys, and more. Located in Terryville, Connecticut, the museum is directly across from the original site of the Eagle Lock Company, founded in 1854. Major collections are displayed by company or theme. The Eagle Lock room contains over 1,000 locks and keys manufactured from 1854 to 1954. The Bank Lock Room comprises a selection of bank locks, vault locks, safe locks and time locks. The Corbin-Russwin Room contains a large display of ornate hardware. Several pieces are gold plated and enameled. One of the animated displays shows how a pin tumbler lock works. The Yale Room accommodates locks manufactured by the Yale Lock company from 1860 to 1950. One of the attractions here is the original patent model of the Mortise Cylinder Pin Tumbler Lock designed by Linus Yale Jr., in 1865.