Fantastic views and thousands of love locks.

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

Turkish adventurer antiques in the heart of the Grand Bazaar.

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

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

A section of the long chain that blocked enemy ships from entering Constantinople.

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

A marvel of Byzantine engineering under the streets of Istanbul.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

A fountain standing as a testament to a doomed alliance.

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

A tiny park in the middle of some big power politics.

The ornate miniature mansions were built for Istanbul's feathered residents.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The oldest known university in the world is in Fez, Morocco.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

A museum with a window view of the Himalayas and an on-site climbing wall.

Feast your eyes upon hundreds of Nepal's native butterflies and moths.

This institution honors Nepal’s most storied warriors.

Sacred Buddhist home of some spiritual monkeys.