Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

Largest lake in Great Britain measured by surface area.

This ancient stone bridge dates back to the early Middle Ages.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Fantastic views and thousands of love locks.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A striking public sculpture representing the period of martial law in Communist Poland.

Real bones which are said to have belonged to a Polish dragon.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

Europe's largest prehistoric mound – burial site of a legendary king?

The only pub in the world surrounded by an ancient stone circle.