An ancient stone fortress considered by many to be the eighth wonder of the world.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

One man's remarkable private collection of art from around the world.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The best place in the world to buy tinned fish.

A garden in Lisbon filled with giant porcelain creatures.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The fire inside this temple has burned for more than 1,500 years.

A battle between nature and architecture in the Cambodian jungle.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.