These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

At high tide this strange footbridge appears to have no purpose whatsoever.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A New Zealand rubbish dump named after British comedian John Cleese.

Taumatawhakatangihangakoauauo tamateaturipukakapikimaungahoronuku pokaiwhenuakitanatahu.

One of the shortest streets in York has an especially odd name.

This network of narrow, medieval passages has the most delightful name.

A riverside park built around the ruins of a massive dam that collapsed in 1909.

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

A swath of France so devastated by war it is still forbidden to go there.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

At the United Kingdom's only residential library you can sleep among the books.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

This artificial ring island was built to hold cubic tons of polluted dirt.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

One of the largest burial mounds in the Netherlands and Belgium.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Museum preserving torture methods from the past.

The medieval network of canals hidden underneath the city is opened to explorers each year.

Austria's very first and only nuclear power station was completed but never used.

Handsomely crafted representations of our round planet.