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

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The "Little Ones," show Portugal in full miniature splendor.

These 400-year-old ruins are all that's left of the monastery where Ines de Castro was assassinated by the King of Portugal.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

The tiny Spanish village that long refused to change its outrageously anti-Semitic name.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

Fighting the British and making game shows for over 150 years.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

The world's largest reflecting pool is just two centimeters deep.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

An aluminum skeleton brings Chinese mythology to the French shore.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

This long line of cement defensive wedges is named after the famous chocolate bar for obvious reasons.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A whimsical bridge adorned with decorative dragons.

A gorgeous stone viaduct crosses over a bucolic valley.

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

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

Thousands of well-dressed mummies below a monastery.