Hazel Glen

Cleaver House is a historic house and farm located to the west of Port Penn, New Castle County, Delaware, about one mile east of US 13 and Biddles Corner. The house was built about 1816, and is a two-story, seven-bay, gable-roofed farm dwelling built in three different sections. The three bay, center brick section is the oldest. Attached to the east is a two bay brick section, making it a five bay center hall dwelling, and to the west a 1+1⁄2-story frame kitchen wing. The house measures 61 feet long by 17 feet wide. Also on the property are a contributing frame barn with attached carriage shed and milk house.It was listed on the National Register of Historic Places in 1985.Joseph Cleaver, a relative of the residents and possible owner of the farm, was a grain merchant in Port Penn. His residence there, also known as the Cleaver House, is a contributing property in the Port Penn Historic District.

Dilworth House is a historic home located at Port Penn, New Castle County, Delaware. The earliest section of the house dates to the late-17th century. It was built in two sections; the west section being the oldest. It consists of two separate, 2+1⁄2-story brick sections, each three bays wide. The house features diapered brickwork. A frame rear wing was added in the second half of the 19th century. The Dilworth House is a rare surviving specimen of an early Delaware yeoman's house.It was listed on the National Register of Historic Places in 1973.

Robert Grose House is a historic home located near Port Penn, New Castle County, Delaware. It was built in the late-19th century, and is a two-story, two-bay, side-gable, one-room plan frame building with a 1+1⁄2-story, shed-roofed frame wing. It has an additional one-story, shed-roofed frame addition on the south elevation and a one-story, shed-roofed porch dated to the first quarter of the 20th century. The house is a typical example for a physically identifiable vernacular property type, identified as a "House and Garden".It was listed on the National Register of Historic Places in 2001.

John B. Nelson House is a historic home close to Port Penn, New Castle County, Delaware. It was built in the early 19th century, and consists of a two-story, four-bay by three-bay core with a one-room wing. It has a two-story wing added in the mid-19th century. It is a stuccoed brick structure.It was listed on the National Register of Historic Places in 1978.

Liston Range Rear Lighthouse is a lighthouse in Delaware, United States, on the Delaware River. The 120 feet (37 m) wrought iron tower was made by the Kellogg Bridge Company of Buffalo, New York. The light was built several miles to the east of its present location in 1876–1877, and was moved in 1906. The light was listed on the National Register of Historic Places in 1978. It is the tallest lighthouse in Delaware.

S. Higgins Farm, also known as Shady View Farm, is a historic home located near Odessa, New Castle County, Delaware. It was built about 1865, and is a two-story frame house built in the vernacular Victorian style. It sits on a stuccoed brick foundation and has a hipped roof. It has an irregular, four-bay facade features a 2+1⁄2-story tower set off-center to the west with a pyramidal roof.It was listed on the National Register of Historic Places in 1985.

Mondamon Farm is a historic home and farm complex located near Odessa, New Castle County, Delaware. The original section was built about 1840. It is a 2+1⁄2-story, five-bay frame dwelling with a two-bay, two-story shed roof service ell. Also on the property is a frame granary, barn, and 19th-century earthfast hay barrack.It was listed on the National Register of Historic Places in 1985.

Retirement Farm, also known as the James M. Vandergrift Farm, is a historic home and farm located near Odessa, New Castle County, Delaware. It was built in the late-19th century, and is a 2+1⁄2-story, five-bay frame, gable roofed farmhouse with a two-story rear ell. Also on the property are a small barn (c. 1800), granary (c. 1850), and barn (c. 1900). The small barn is the last known example of its kind surviving in St. Georges Hundred.It was listed on the National Register of Historic Places in 1985.

Riverdale is a historic home located near Odessa, New Castle County, Delaware. It was built about 1840, and consists of the four-bay-wide, single-room-deep rectangular core of the house with a 22-foot, two-story L-shaped extension. Both sections have gable roofs. Also on the property is the site of a number of demolished outbuildings.It was listed on the National Register of Historic Places in 1985.

Windsor, also known as Annondale, is a historic home located near Port Penn in New Castle County, Delaware, USA. It was built about 1760, and is a two-story, five-bay, gable-roof, brick building with interior brick chimneys at each gable end. It has a center-passage plan with overall dimensions of 45 feet wide by 19 feet deep. A two-story, wood-frame kitchen wing abuts the rear of the main house. The front facade features a hipped-roof frame porch added in the late-19th century. It is in the Federal style.It was listed on the National Register of Historic Places in 1992.

Biddle House, also known as the Vandergrift-Biddle House, is a historic home located near Port Penn and St. Georges, New Castle County, Delaware. The house underwent five distinct periods of growth and in the process has grown from a one-room-plan plank house to an extended rambling two-story structure. The earliest section was built about 1780, with the first modification made in the early-19th century. It was later expanded during the Victorian era with wings.It was listed on the National Register of Historic Places in 1978.

Augustine Creek is a 4.54 mi (7.31 km) long tributary of Delaware Bay in New Castle County, Delaware. Augustine Creek is tidal for most of its course.