A tiny piece of the Moon is embedded in this stained glass masterpiece.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

At 207 feet, one of the world's longest continuous escalators.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A fitting attraction for the corn capital of the world.

Miraculous tree that seems to sprout out of solid rock.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The largest collection of historical roller skates in the world.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

The first archaeological site discovered by aerial photography.

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

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

The world's largest collection of witchcraft regalia.

A unique waterfall that some believe attracts the fairfolk.

A fantastic castle rumored to be the birthplace of King Arthur.

Famously misunderstood wonder of the ancient world

Fascinating town where normal life interfaces with the occult.

Rebuilt remains of a temple to Roman god Mithras.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Giant, friendly pelicans in Central London, the most unlikely of places.