This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

A long-buried ancient ruin unearthed right in the middle of the city.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A diverse collection of wax, bone, papier-maché and mummified relics.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

An amazing collection of wax anatomical models and terratological models.

An extraordinary collection of 18th century anatomical waxworks.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A hands-off space for graffiti artists to hone and display their skills.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

One of Europe's oldest libraries.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

Hidden in plain sight, this creepy sculpture watches from above.

Home to the most complete dodo remains known - one head, and one foot.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

Collection dedicated to brands, packaging and advertising.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.