The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

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

The embalmed remains of the communist leader lie within a custom crystal coffin.

This ancient Chinese observatory still contains early astronomy technology.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Why walk on this historical site when you can zoom down instead?

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A house carved into a rock in the 1940s.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

An extensive collection of ancient Egyptian artifacts and mummies.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

San Francisco's newly reopened hands-on science museum.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.