This legendary city has been a tourist attraction for centuries.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

A breathtakingly steep set of stairs is carved directly into the face of the sea cliffs of Bonifacio.

This Corsican Neolithic site is full of pre-Roman megalithic structures that may or may not be penises.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This elegant arc of a waterfall marks a religious turning point.

The most powerful waterfall in all of Europe.

Climb right into the heart of this colorful Iceland volcano.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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

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

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

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

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The highest bridge in America was built for an almost unnervingly small amount of money.

The ghostly remains of an accidental sea.