A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Dedicated to the largest armed uprising in American history since the Civil War.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

Mass grave of 50 unidentified French Soldiers who died at the Siege of Yorktown, 1781, that gave victory to the American Revolution.

Outside a small brewery, a Gothic fountain that once provided water to thirsty horses.

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

Dedicated to one of the most successful boxers to compete in the heavyweight division.

This 19th-century hotel and spa hosted famous guests like like the Vanderbilt family, William Waldorf Astor, Helen Keller, and Jay Gould.

A sycamore tree grown from seeds that traveled to the moon.

Dedicated to a legendary spiritual vision.

A stone monument acknowledging Scotland's right to have a separate Parliament from the one in Westminster.

A monument commemorating the discoverer of radio astronomy.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

A full-service gas station known as the oldest in America.

This museum celebrates a legendary railroad photographer whose personal life was as dramatic as his photos.

Where the Border Reivers of the Johnstone clan used to hide their stolen cattle.

At the end of a street is a statue with no indication as to why it was created.

War prevented this Polish composer's body from being returned to his home country for 51 years. Though his ashes eventually made it home, his heart stayed behind.

Local lore surrounds this unusual stone.

The 18th-century inspiration behind Harry Potter's Sorting Hat.

A doctor had this large tub carved into rocks to facilitate easier seawater bathing.

A wonderous place devoted to art and metal.

Dedicated to the Father of the British Fire Service.

A brother statue swap has adorned this building's facade for centuries.