These ruins witnessed the final gathering of the failed Jacobite Rebellion.

Where America’s first doomsday cult awaited the end of the world.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Did Inca children also slide down these smooth rocky slopes above Cusco?

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

A fascinating little museum all about the rich history of Peru’s famous plant.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

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

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

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

An inconspicuous footbridge beloved by San Diego locals.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

One of the largest trees of its kind in California.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

The Giant Lemon of Lemon Grove.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

The ghostly remains of an accidental sea.

Along a California highway is a kind of Jurassic Park made of metal.