An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

This unique building in the main square stands out among the city's typically Baroque architecture.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

Hidden beneath a restaurant, underground tunnels tell the story of Malta’s tragic role in World War II.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

In 1977, an eccentric book lover formed a micronation for book lovers.

Britain’s highest medieval monastery is a remote ruin nestled at the head of a valley 1,240 feet above the sea.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

A dark Victorian well house now plays host to mystical waters and pagan shrines.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Romania's triumphal arch looks out over Bucharest.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This snug medieval lane is one of the narrowest streets in the world.

A house of bones — but nobody is quite sure to whom they belong.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.