2300-year-old Roman road connecting the empire.

Rome’s legendary peephole vista is also a former Crusader stronghold.

Unconventional site where the tracks of Zurich tramcars intersect.

The world's longest and deepest train tunnel.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This eatery re-creates dishes from the Ottoman Empire so you can dine like a sultan.

Feast on the freshest of fish by the Bosphorus.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

It's believed that this small church was connected to the Hagia Sophia via a secret tunnel.

This family-owned canteen has been selling goat milk ice cream since 1933.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

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

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

The most metal church of all time was built in record time because of an international, pious pissing contest.

1513 Turkish world map, full of European state secrets and snarky commentary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.