Clapp Octagon House

The St. Augustine Light Station is a privately maintained aid to navigation and an active, working lighthouse in St. Augustine, Florida. The current lighthouse stands at the north end of Anastasia Island and was built between 1871 and 1874. The tower is the second lighthouse tower in St. Augustine, the first being lit officially by the American territorial government in May 1824 as Florida's first lighthouse. However, both the Spanish and the British governments operated a major aid to navigation here including a series of wooden watch towers and beacons dating from 1565.The current lighthouse tower, original first-order Fresnel Lens and the Light Station grounds are owned by the St. Augustine Lighthouse & Maritime Museum, Inc., a not-for-profit maritime museum. The museum is open to the public 360 days a year. Admission fees support continued preservation of the lighthouse and five other historic structures. Admissions and museum memberships also fund programs in maritime archaeology, traditional wooden boatbuilding, and maritime education. The non profit mission is to "discover, preserve, present and keep alive the stories of the nation's oldest port as symbolized by our working St. Augustine Lighthouse."

The St. Augustine Alligator Farm Zoological Park is one of Florida's oldest continuously running attractions, having opened on May 20, 1893. It has 24 species of crocodilians, and also a variety of other reptiles, mammals and birds, as well as exhibits, animal performances and educational demonstrations.

The St. Augustine Amphitheatre (shortened as The Amp) is an outdoor amphitheater located on A1A in St. Augustine, Florida, United States. The venue seats over 4,000 persons, and is managed by the St. Johns County Parks & Recreation department.

The Bridge of Lions is a double-leaf bascule bridge that spans the Intracoastal Waterway in St. Augustine, Florida, United States. A part of State Road A1A, it connects downtown St. Augustine to Anastasia Island across Matanzas Bay. A pair of copies of the marble Medici lions guard the bridge, begun in 1925 and completed in 1927. They were removed in February 2005 and returned in March 2011. Roads & Bridges magazine named the Bridge of Lions as fourth in the nation's top 10 bridges for 2010. Projects were evaluated based on size, community impact and challenges resolved.The United States Department of Transportation declared the bridge "structurally deficient and functionally obsolete" in 1999, prompting heated debates on what to do with the structure. A restoration plan was approved, but opponents continued to voice their opposition. Reynolds, Smith & Hills from nearby Jacksonville was awarded the engineering and design contract, estimated at $77 million, and projected to require five years to complete.

The Sanchez Powder House Site (also known as Powder House Lot) is a historic site in St. Augustine, Florida. It is located on Marine Street. On April 14, 1972, it was added to the U.S. National Register of Historic Places.

The King's Bakery is a coquina stone structure in St. Augustine, Florida, built during the British colonial period in the state (1763–1783). The building, located on Marine Street, with the rear facing Matanzas Bay, was constructed to supply bread to the British troops quartered across the street at the St. Francis Barracks, a building which formerly housed Franciscan friars, during the First Spanish Period (1565–1763). The monastery was used by the British as military barracks.The bakery, believed to be the only structure remaining in St. Augustine built entirely during the British period, has been used since then as a storeroom for flour, a military hospital, and offices. The old bakery building is part of the St. Francis Barracks military compound, which since 1907 has served as the headquarters of the Florida National Guard. In 1934 it was converted for use as a garage.

St. Augustine National Cemetery is a United States National Cemetery located in the city of St. Augustine in St. Johns County, Florida. Located on the grounds of the active military installation known as St. Francis Barracks, the state headquarters of the Florida National Guard, it encompasses 1.4 acres (0.57 ha), and as of the end of 2005 had 2,788 interments. Administered by the United States Department of Veterans Affairs, it is currently closed to new interments. It was listed on the National Register of Historic Places in 2016.

St. Francis Barracks is a historic structure constructed of coquina stone located on Marine Street in St. Augustine, Florida, named in honor of St. Francis of Assisi. The barracks were constructed between 1724 and 1755 by friars of the Order of St. Francis, to replace a series of wooden buildings which had been destroyed by the ravages of the tropical climate in La Florida and by fire, both accidental fires and occasional intentional ones, such as when the city was razed by the English in 1702.The barracks were turned into a military structure by the British in 1763, after Florida became a British possession at the conclusion of the French and Indian War. At that time, the Franciscan friars vacated St. Augustine, along with a majority of the other Spanish residents. The name St. Francis Barracks also came to be applied to the larger military reservation which developed around the barracks on the shore of the Matanzas River. There are several additional historic structures, to include senior military officer housing and The King's Bakery, the latter being the only extant structure in St. Augustine constructed entirely within the twenty-year period of the British occupation. Today the St. Francis Barracks is a U.S. military installation that is also known as the Florida State Arsenal and serves as the headquarters for the Florida National Guard and its two subordinate organizations, the Florida Army National Guard and the Florida Air National Guard. A portion of the military reservation is also the site of the St. Augustine National Cemetery.

The González–Álvarez House, also known as The Oldest House, is a historic house museum at 14 St. Francis Street in St. Augustine, Florida. With a construction history dating to about 1723, it is believed to be the oldest surviving house in St. Augustine. It is also an important example of St. Augustine's Spanish colonial architectural style, with later modifications by English owners. It was designated a U.S. National Historic Landmark in 1970. The house is now owned by the St. Augustine Historical Society and is open for public tours as part of the Oldest House Museum Complex. Evidence can be seen of the Spanish, British, and American occupations of St. Augustine.

For the Oldest House Museum in Key West, Florida see Old Island Restoration Foundation The Oldest House Museum is located in St. Augustine, Florida in St. Johns County, Florida. It is operated by the St. Augustine Historical Society and includes the González-Alvarez House, the Manucy Museum (named for Albert Manucy) of local history and the Edwards Gallery. The Oldest House, from which the museum derives its name, is located on a site that has been occupied since the 1600s. Formally known as the González-Alvarez House, it is the oldest surviving Spanish Colonial dwelling in Florida. The building dates back to the early 1700s. The house has been open to visitors since 1893. The United States Department of the Interior designated the house a National Historic Landmark in 1970.

Matanzas Bay is a saltwater bay in St. Johns County, Florida; the entrance to the bay from the South Atlantic is via St. Augustine inlet. Technically this stretch of water running along the city's waterfront is part of the Matanzas River, though it is regularly referred to as a bay or harbor. Bodies of water that connect to the bay in addition to the South Atlantic are clockwise from the inlet: Salt Run: an inlet of Anastasia Island creating a peninsula of the eastern portion of Anastasia State Park. Matanzas River: a tidal channel; part of the Intracoastal Waterway which flows in an easterly direction then south for approximately 15 miles, separating Anastasia Island from the mainland. Another tidal channel the San Sebastian River flows westerly from the Matanzas River creating a peninsula of the original Spanish era section of St. Augustine. Hospital Creek: tidal channel flowing north from confluence of Matanzas Bay and North River. Creek in which Pedro Menéndez de Avilés sailed into and initially established St. Augustine on its mainland shore. Tolomato River (also known locally and historically in the British period as the North River): tidal channel flowing northMunicipalities: St. Augustine and Vilano Beach. Tides: The average fall of the tides in Matanzas Bay is 4.5 feet between high and low tide. Bridges: State road A1A crosses the bay via the Bridge of Lions which connects the mainland portion of St. Augustine with the portion of the city located on Anastasia Island. Wetlands: A large portion of the tidal wetlands directly fronting the bay have been obliterated due to construction of the seawall in the old quarter of St. Augustine and the construction of Davis Shores a residential development created on reclaimed land on Anastasia Island and a subsequent seawall. The portions of the Intracoastal Waterway connected to Matanzas Bay have wetlands of varying amounts and degrees of natural state. Parks: Castillo de San Marcos National Monument, Spanish era fort completed in 1675 and Anastasia State Park.

The Spanish Coquina Quarries are a historic site in St. Augustine Beach, Florida. They are situated off A1A within Anastasia State Park. The quarries were added to the National Register of Historic Places in 1972.