This tiny island is home to the world's largest colony of Northern gannets.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

A sweet symbol marks the place where torturous executions were once carried out.

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

The fountain marks the area where hundreds of accused witches were burned at the stake.

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 rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.

Mass graves and Victorian monuments mark the history of Memphis in this 19th century cemetery.

The childhood home of Jerry Lee Lewis was converted into a museum dedicated to his musical legend.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

The juke joint where legendary soul artists ate, drank, and made merry.

The classic Atari game's iconic aliens have invaded downtown San Diego.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

A house of courtship where the Jazz Age's most storied lovers got their start.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

A retrofuturistic art installation in the Pittsburgh Airport.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A building so large that it has its own weather.