The only place where can you share a seat with the bums of the Fab Four.

An American ghost town hides along a side street in Scotland's capital.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

This ordinary-looking mailbox has a rather explosive history.

The metal leaves on this tree are engraved with the names of Holocaust victims.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A fake Transylvanian castle houses a cathedral of antlers.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

This building has survived for more than a century and remains virtually untouched.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

A historic and beautiful Art Nouveau chamber in a historic railway station.

This artificial cave looks like something out of a fairytale.

Looming communist pillar with a Czech twist.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

An impressive monument to Poland's independence.

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."