Hundreds of hidden passageways weave through the old quarters of Lyon.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

Bridge that died in war and was resurected.

Inspired by the Rialto Bridge in Venice, these three clustered bridges were just one part of a Slovenian architect’s grand vision.

Strange rumors surround the artist who created these solemn metal guard dogs.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

Longest fortress system anywhere in Europe.

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

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

Ancient serpentine sacrifice holder that has stood the test of time.

A charming beach town in Turkey captures all the colors of the rainbow.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This triumphal arch is the only fully standing structure that remains from Roman-era Oea.