Jillson Square Park

The William Jillson Stone House is a historic house museum at 561 Main Street inside Jillson Square Park, in the Willimantic section of Windham, Connecticut. Built in 1825–27, it is a rare local instance of a stone house, built by one of the area's early industrialists. It is now maintained by the Windham Historical Society, and was listed on the National Register of Historic Places in 1971.

The Frog Bridge (officially known as the Thread City Crossing) is a bridge located in Willimantic, Connecticut which carries South Street (CT 661) across the Willimantic River. It is known as the Frog Bridge because it has four copper frog sculptures on each end of the bridge, sitting on concrete thread spools. The sculptures were designed and created by artist Leo Jensen of Ivoryton, Connecticut.

The Windham Textile and History Museum is a museum in Willimantic, Connecticut, in the New England region of the United States. It is currently located in Main St.

Natchaug Elementary School is a public elementary school in Willimantic, Connecticut, United States. The school opened in 1865 at the junction of Milk Street and Jackson Street, in downtown Willimantic. It is part of the Windham Public School system and one of four elementary schools and a K-8 STEM magnet school. Natchaug is accredited by the New England Association of Schools and Colleges. The name Natchaug comes from the Nipmuc word meaning "land between the rivers." The school colors are bright green and blue.Natchaug is a public school open to students from kindergarten through fifth grade, after which they move on to Windham Middle School. In the 2021-22 school year there were 278 enrolled students in grades K-5. With 26 classroom teachers, the school has a student-teacher ratio of about 11:1. Natchaug also has a Family Resource Center and before- and after-school programs for its students. Natchaug is a neighborhood school; most students walk to school, although a few school buses are provided.

The Willimantic Footbridge is a pedestrian bridge in the Willimantic section of Windham, Connecticut. Built in 1906, it extends from Main Street southward, across Riverside Drive, railroad tracks, and the Willimantic River, connecting downtown Willimantic to the residential area south of the river. It is one of a small number of pedestrian bridges built in the early 20th century to survive in the state. It was listed on the National Register of Historic Places in 1979.

The Willimantic Elks Club is a historic Elks lodge at 198 Pleasant Street in the Willimantic section of Windham, Connecticut. Built in 1925 for a lodge founded in 1914, it is one of the finest examples of Tudor Revival architecture in the region, and has been a major site of social events in the community since. The building was added to the National Register of Historic Places in 2005.

The Jillson Mills (Officially known as the Willimantic Linen Company Mill Complex) is a mill complex in Willimantic, Connecticut. The mills produced cotton thread throughout the lifespan of the operation of the mill.

The Main Street Historic District encompasses the historic portion of the central business district of Willimantic, in Windham, Connecticut. The district encompasses the commercial business district of Willimantic and is roughly linear along Main Street (Route 66) and Riverside Drive between Church Street and Bridge Street. It was first listed on the National Register of Historic Places in 1982. Its area was increased in 1992 to include the Hall and Bill building on North Street, built in 1889 by one of Willimantic's leading printers.

Willimantic Armory is a historic armory building on Pleasant Street in Windham, Connecticut. It served the Connecticut National Guard from 1913 until 1980 when the building was sold to developers who converted the building into apartments.

The Willimantic Post Office is a former post office located in Willimantic, Connecticut. The post office was built between 1910 and 1912, and was used until 1966; when a new post office was built a block away. The Willimantic Brewing Company purchased the building in 1997 and converted it into a pub.

The Windham Town Hall is a town hall in Willimantic, Windham, Connecticut, United States.

Willimantic is a census-designated place located in Windham, Connecticut. Previously organized as a city and later as a borough, Willimantic is currently one of two tax districts within the Town of Windham. Willimantic is located within Windham County and the Southeastern Connecticut Planning Region. Known as "Thread City" for the American Thread Company's mills along the Willimantic River, it was a center of the textile industry in the 19th century. Originally incorporated as a city in 1893, it entered a period of decline after the Second World War, culminating in the mill's closure and the city's reabsorption into the town of Windham in the 1980s. Willimantic was populated by a series of ethnic groups migrating to the city to find work at the mills, originally Western European and French Canadian immigrants, later Eastern Europeans and Puerto Ricans. Architecturally, it is known for its collection of Victorian-era houses and other buildings in the hill section, the Romanesque Revival town hall and several crossings of the Willimantic River, including the Willimantic Footbridge and the "Frog Bridge". It is home to Eastern Connecticut State University and the Windham Textile and History Museum. As of 2020, Willimantic had a population of 18,149 people.