Once designed as a natural history museum, this building is now home to a massive art gallery.

Protecting the dead from opportunistic body snatchers.

The most loyal of little dogs, or a Victorian era publicity stunt?

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This small museum in a 17th-century building honors three iconic Scottish writers.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The world-record holder for the longest bridge stretching continuously over water.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Ride on a fully-restored Nike nuclear-tipped missile elevator from the Cold War.

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

Part mural and part sculpture, this work of art sits in the middle of the Promenade, as if swimming in a river of asphalt towards the ocean.

This scenic cable car ride glides 100 feet above Mexico City.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

This museum houses two of Mexico's most impressive Aztec monoliths.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.