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

Two plaques commemorate the site of Shakespeare's first theatre.

The oldest working mechanical clock in the world.

Recently restored menagerie of Victorian-era beasts.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Fascinating town where normal life interfaces with the occult.

One part local history, 99 parts gruesome haunted house.

Famously misunderstood wonder of the ancient world

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Historic medieval fortified city in southwest France.

This massive blockhead sculpture hides an entire library.

Akureyri is home to an oversized can of one of Iceland's favourite beers.

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 stunning concert hall has become a symbol of Iceland's national recovery.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

These concrete domes were installed on an Icelandic bluff to honor a very specific musical tradion.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

A sulfuric martian landscape that looks far better than it smells.