This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

It was once nicknamed "the most bombed hotel in Europe."

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

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

A multi-storied adobe complex has been inhabited for more than a thousand years.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

Belfast's namesake river still winds below the city center, hidden from sight.

The man who wasn't there.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

The atmospheric road was never meant to be so creepy.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

A fascinating insight into daily life in the Eastern Bloc.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.