Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

This mysterious anthropomorphic statuette is on display at the National Museum of Oman.

Where artisans use centuries-old techniques to build traditional Arabian ships.

This beautifully restored fortification kept the city safe for centuries.

This lonely tomb is all that remains of a once-bustling ancient trade hub visited by Marco Polo.

This bazaar is one of the oldest in the Arabian world.

A sinkhole and now a swimming hole, too, full of dazzling turquoise water.

The oldest tourist graffiti in the world helped archaeologists identify the Pyramid of Djoser.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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

In Egypt's expanding metro area, many of the neighbors are dead.

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

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

A haunted outpost in Moldova, where guards are said to have fired at a ghostly figure.

A recreation of the bar from the classic 1942 movie “Casablanca.”

Geographers once declared this spot in Ukraine to be the center of Europe, although that status is disputed.

A beautiful mausoleum is the crown jewel of a preserved ancient city in Central Asia.

A theater with world-class acoustics, neo-Classical architecture and Kazakh ornaments.

A 3,000 acre historic oasis and farm in the middle of the UAE's "Green City".

The only building in Kazakhstan where symbols of sovereignty are collected under one roof.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

The video game-themed street art first popped up in the French city.

The Argonaute submarine was the French navy's pride and joy in the 1950's.