Natural and Man-made Points of Interest in the United States of America

Forts

Structures built as defense against attacks, usually fortified and occupied by military personnel.

Alcatraz Island seen from Coit tower in San Francicso.
Often referred to as "The Rock" or simply Alcatraz, the island has been the location of a lighthouse, a fort, a military and federal prison and an American Indian protest. It has become a popular tourist attraction.
Castillo de San Marcos National Monument, Florida, USA
Built between 1672 and 1695, Castillo de San Marcos was the first masonry fort constructed to defend Saint Augustine. It was known as Fort St. Mark from 1763 until 1784 while under British control and Fort Marion from 1821 until 1942.
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Fort Crockett is a government reservation originally built to protect the city and harbor of Galveston and to protect the ports of Galveston and Houston during the Texas Revolution.
Ruins at Fort Mifflin
Originally called Fort Island Battery, Fort Mifflin was commissioned in 1771. During the American Revolutionary War, the fort was a centerpiece of the British conquest of Philadelphia.
A reconstruction of the stockade and a blockhouse.
Fort Mitchell Site is an archaeological site that was declared a National Historic Landmark in 1990.
Fort Morgan, Slag Point, Alabama, 1864, showing damage to the Citadel.
The post was named in honor of Revolutionary War hero Daniel Morgan. Construction was completed in 1834 and it was first garrisoned in March of that year. In 2007, it was listed as "one of the nation's 10 most endangered battle sites."
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Fort Steuben was built in 1786 for the protection of surveyors who were mapping the Northwest Territory. The reconstructed fort is open to the public and helps to depict the daily life of those who helped open up the new territories to settlement.
Fort Sumter, 2004
The fort was named after General Thomas Sumter, a hero of the American Revolution. On April 12, 1861, at 4:30 a.m., Confederate batteries opened fire on the fort, which started the American Civil War.
A portion of the modern Fort Toulouse reconstruction, taken in 2007.
The fort was first established in 1717 by the French to counter the growing influence of the British colonies of Georgia and Carolina. It was named for Louis-Alexandre de Bourbon, comte de Toulouse. Fort Jackson was later built on the site.

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