This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

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

This 16th-century house tells the city's history through old artifacts and quirky tales.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

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

This small museum in a 17th-century building honors three iconic Scottish writers.

One of Europe's oldest libraries.

A sweet symbol marks the place where torturous executions were once carried out.

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

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The heads of two giant mythological water horses honor Scotland's horselord past.

A book bound in the skin of an infamous criminal, along with countless other specimens.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Famously misunderstood wonder of the ancient world

This demon atop the Notre-Dame de Paris looks utterly bored.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.