Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

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

Take black faced bears with giant clubs, white faced barbers wielding axes, hunters armed with shotguns, and mix in a lot of drinking.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

A precariously balanced goose-shaped boulder with a dark legend.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

Venice's island of the dead.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Where Venice's gondolas go for a tune-up.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

100 year tradition of fist fights, marked by marble footsteps.

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

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The world's tallest bridge is also possibly the most elegant.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.