A wonderful collection of fossilized dinosaurs and other creatures that roamed the landscape millions of years ago.

Designed in the Romanesque style, this structure was once a fortress monastery.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This dragon narrowly escaped demolition.

Five million people are laid to rest here, more than the population of Madrid itself.

Built to celebrate the glory of a new queen, this forgotten monument has moved around Madrid three times, reflecting 200 years of political whims and city redevelopment.

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

This cuddly-looking statue symbolizes the bond between Spain and China.

This snug medieval lane is one of the narrowest streets in the world.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This massive underground salt mine now holds a sci-fi theme park in its depths.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

Something's watching you.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Single runway interrupted by a busy road that cuts across its middle.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

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

Eat the ultimate iteration of Portugal's most beloved pastry.