United States lightship Huron (LV-103)

Fort Gratiot was an American stockade fort in Fort Gratiot, Michigan, in Saint Clair County, Michigan. The former location of the fort was listed on the National Register of Historic Places in 1980.

The Ladies of the Maccabees Building is a fraternal organization building, located at 901 Huron Avenue in Port Huron, Michigan. It was listed on the National Register of Historic Places in 1982.

The Thomas Edison Depot Museum (previously the Grand Trunk Western Railroad Depot) is a former railway depot located at 520 State Street in Port Huron, Michigan. It has been converted into a museum. The building was listed on the National Register of Historic Places in 1977.

St. Clair County Community College (SC4) is a public community college in Port Huron, Michigan. It serves as the primary center of higher education for the Blue Water Area. SC4 offers Associate degree and certificate programs. It also offers online classes and transfer programs to four-year institutions. In addition, working with University Center partners, students can earn Bachelor's and Master's degrees without even leaving the SC4 campus. Classes are held in classrooms on the SC4 campus and taught online. SC4 has learning centers in Harbor Beach, Algonac, Yale, Peck, and Croswell, as well as its main campus in Port Huron. Through these regional centers, SC4 serves a large portion of the Thumb region of Michigan.

The Blue Water Bridge is a twin-span international bridge across the St. Clair River that links Port Huron, Michigan, United States, and Point Edward, Ontario, Canada. The Blue Water Bridge connects Highway 402 in Ontario with both Interstate 69 (I-69) and Interstate 94 (I-94) in Michigan.

The Port Huron–Sarnia Border Crossing connects the cities of Port Huron, Michigan and Sarnia, Ontario. It is located at the Blue Water Bridge at the St. Clair River. Both the US and Canada border stations are open 24 hours per day. The US Customs and Border Protection upgraded its inspection facilities in 2011, and Canada Border Services Agency upgraded its facilities in 2012. In 2017, inspectors at Port Huron processed 1,579,646 cars and 826,288 trucks.

McMorran Arena is an entertainment complex in Port Huron, Michigan consisting of a 4,800-seat multi-purpose arena and a theater. It was designed by Alden B. Dow and built in 1960 for $3.5 million (equivalent to $34.6 million in 2022). The exterior of the complex is faced with red brick with limestone accents.

The Port Huron Civic Theatre (formerly Port Huron Little Theatre) is a historical theatre which started in 1956 in the town of Port Huron, Michigan. For sixteen years, PHLT brought 84 productions to the McMorran Place Theatre stage. In 1976, the theatre purchased and renovated an old church in town for a place of their own. However, in 1983 the theatre returned to McMorran Place Theatre for the larger atmosphere. In 1989, the theatre changed the name to Port Huron Civic Theatre to "better reflect a growing, county-wide membership". The theatre's board elected to produce "Game Night", the first original play to be produced by the group in its then 55-year term. Produced in the spring of 2011, the play was written by Port Huron resident Jeremy Stemen.

Fort St. Joseph was a fort established in 1686 by Daniel Greysolon, Sieur du Lhut for New France. Erected on the St. Clair River, the fort was intended to prevent English trade with native tribes. In 1687, about two hundred coureurs de bois, five hundred Algonquian, Henri de Tonti, Nicholas Perrot, Oliver Morel de La Durantaye, and thirty French soldiers gathered there under Marquis de Denonville's orders to prepare for an attack on the Six Nations Iroquois Confederacy during the Iroquois Wars. With a lack of supplies and no orders from the governor, the fort's commander, Louis-Armand de Lom d'Arce de Lahontan, Baron de Lahontan, burned Fort St. Joseph on August 27, 1688, and moved to Michilimackinac. According to historian Reuben Gold Thwaites, the action caused "no disadvantage" to New France.

The Howard Block, also known as the Central Block, is a commercial building located at 201-205 Huron Avenue in Port Huron, Michigan. It was listed on the National Register of Historic Places in 1994.

The Seventh Street–Black River Bridge is a bridge carrying Seventh Street over the Black River in Port Huron, Michigan. The bridge was listed on the National Register of Historic Places in 2000. It is the only single-leaf bascule bridge in the state of Michigan.

The Military Road Historic District is a commercial historic district located along Military Street and Huron Avenue, from Court Street to Bard Street, in Port Huron, Michigan. The district was listed on the National Register of Historic Places in 1998.