An alternate history park where the Union Army loses the war... to dinosaurs.

Once America's longest-manned military fort, now an abandoned hulk.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

An interesting look into 18th-century American history.

A mysterious air force base built to resemble a Long Island fishing village.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This historic national park is covered in the stunning ruins of red rock pueblos.

This replica of the Greek structure is in the heart of Nashville.

The remains of what was once the world's steepest passenger funicular.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Finally, you don't have to be a pious Swedish seaman to relax like one.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

Canada's subterranean Cold War museum has doubled as a movie set.

Soaring over the Niagara Whirlpool since 1916.

A remote hilltop covered in giant monoliths haunts the Brittany countryside.

This ancient theater was once the home of fierce gladiatorial battles.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.