Redden, Delaware

The Redden Forest Complex is located in Redden State Forest, Sussex County, Delaware. Now known as the Redden Forest Education Center, the complex includes three Shingle style buildings built in 1900-1902 as a hunting retreat for Pennsylvania Railroad heir Frank Graham Thompson. The complex was served by a specially built railroad siding in Redden Crossroads. The camp fell into disuse during the Great Depression and was acquired by the state of Delaware in the 1930s. It saw use by the Civilian Conservation Corps, then the complex and the surrounding property were designated Redden State Forest in 1937.

McColley's Chapel is a Methodist chapel located between Ellendale and Georgetown, Delaware. It was listed on the National Register of Historic Places on November 30, 2011.

Ellendale State Forest Picnic Facility, also known as CCC Picnic Area/S-8151, is a historic picnic facility located at Ellendale, Sussex County, Delaware. It was built in 1938-1939 by the Civilian Conservation Corps and designed to serve as a road-side rest facility for tourists and long-distance travelers on the DuPont Boulevard. It consists of three buildings and three structures. The largest of these is a 20 feet, 10 inch, square pyramidal-roofed log pavilion. Also on the property are two wood gable-roofed picnic tables shelters, a fieldstone trash pit, fieldstone fireplace hearth, and foundation and water pipe for a fountain.It was added to the National Register of Historic Places in 1991.

Prong Number One is a 5.78 mi (9.30 km) long 3rd order tributary to Gravelly Branch in Sussex County, Delaware.

The Hebron Methodist Protestant Church and Cemetery is a historic church property at 18282 Seashore Highway near Georgetown, Delaware. The church is a single-story wood-frame structure, with a gable roof and clapboard siding, built in 1888 for a Methodist congregation. It is architecturally distinguished for its interior, which is, unlike most period Delaware church, has walls finished in wood paneling instead of plaster. Regular services at the church ended in 1934.The property was added to the National Register of Historic Places in 2015.

Georgetown Coal Gasification Plant, also known as the Georgetown Service and Gas Company, is a historic coal gasification plant located at Georgetown, Sussex County, Delaware. It was built in the late-19th century, and is a rectangular one-story, three bay by three bay brick structure measuring 40 feet by 25 feet. It has a gable roof with a smaller gable roofed ventilator. Also on the property is a small brick gable roofed brick building measuring 8 feet by 10 feet; a small, square concrete building; a large, cylindrical "surge tank;" 500-gallon bottled-gas tank; and a covered pit for impurities. The complex was privately owned and developed starting in the 1880s to provide metered gas for domestic lighting, town street lights, municipal and domestic uses. The coal gasification process was discontinued in the 1940s.The site was added to the National Register of Historic Places in 1985. It is listed on the Delaware Cultural and Historic Resources GIS system as destroyed or demolished.

Thomas Sipple House, also known as the Chipman House and Boxwood Manor, is a historic home located at Georgetown, Sussex County, Delaware. It was built in 1861, and is a two-story, five-bay, single pile frame dwelling with a two-story rear ell. It sits on a brick foundation and has a low-pitched gable roof. The house was modified in 1912, to enclose a rear porch, add a sleeping porch, and add a two-story porch connecting the house to two outbuildings. It features Greek Revival and Italianate style design elements.The site was added to the National Register of Historic Places in 1985.

Sussex County Courthouse and the Circle is a historic courthouse located at The Circle in Georgetown, Sussex County, Delaware. It was designed by noted Philadelphia architect William Strickland (1788–1854) and built between 1837 and 1840. It is a two-story, brick structure with a brick tower over the entrance hall. It originally featured a squat entrance tower surmounted by an undersized cupola. In 1914, the tower was enlarged and columns were added to the front. Renovations carried out in 1970 gave the building a decidedly more Georgian appearance. The Circle was laid out in 1791-1792 as a public green at the center of a baroque town plan for Georgetown. One of the first buildings constructed was the Old Sussex County Courthouse, which was moved to allow construction of the current Sussex County Courthouse.The site was added to the National Register of Historic Places in 1973.

Broadkill Hundred (later Broadkiln Hundred) is a hundred in Sussex County, Delaware, United States. Broadkill Hundred was formed in 1696 as one of the original Delaware Hundreds. Originally known as Broadkill Hundred after the Broadkill River, the name was changed to Broadkiln Hundred in 1833 by the 57th Delaware General Assembly. Its primary community is Milton.

Joseph T. Adams House is a historic home located at Georgetown, Sussex County, Delaware. It was built in 1868, and is a two-story, five-bay, shingled frame dwelling in the Greek Revival style. It has a rear ell, gable roof, and cross-gable dormer. It features corner columns and an elaborate Italianate style cornice. In 1957, the house was acquired for the first permanent home for the Georgetown town offices since its establishment in 1791.Joseph T. Adams (1831-1905) was recorded as working as a clerk on the 1850 and 1860 Census. He was an alderman of the Town of Georgetown from 1873-1876. Ownership of the house passed to his wife, Jane Adams, when he died. When she died in 1914, it passed to their son, William Adams.The site was added to the National Register of Historic Places in 1998.

Dr. John W. Messick House and Office is a historic home and office located at Georgetown, Sussex County, Delaware. It was built in 1876 and is a 1+1⁄2-story, three-bay, L-shaped frame dwelling with a two-story, five-bay rear wing. It has a recessed turret structure attached at the front as a fourth bay. The house is in a Late Gothic Revival style with a mansard roof in the Second Empire style.The site was added to the National Register of Historic Places in 1987.

Delmarva Christian High School is a private Christian high school located in Georgetown, Delaware, the geographic center, and county seat of Sussex County.