Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

Protecting the dead from opportunistic body snatchers.

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

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

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

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

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

A 18th century graveyard and its astonishing cortege of macabre iconography.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

This series of Scottish caves has no clear purpose other than baffling historians.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

A wonderfully kitsch bookstore the size of a supermarket.

One of the deepest indoor swimming pools in the world.

This modern arts center is built around a gem of late-Baroque architecture.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.