When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

A bridge that has seen many reiterations over its lifetime.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This small museum located under the famous cube houses, is home to some 30,000 chess pieces.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

A modern reimagining of a medieval city gate.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Used as an example in one of the first dictionary entries for "museum" in 1706.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

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.

The beloved fantasy novelist is buried near a church containing a whimsical etched glass window full of Narnia favorites.

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.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.