Long before ultrasounds and modern testing, medical specimens like these conjoined twins helped physicians learn about congenital anomalies.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

This serene wooded hilltop has a dark history as the climactic point of the Swedish witch trials.

Some clocks inside this museum are more than 500 years old.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

Turkish adventurer antiques in the heart of the Grand Bazaar.

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

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

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

Fortified homes of highland warriors that are still in use today.

When the Soviets destroyed the historic Armenian monastery they somehow left its bell tower intact.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

Fast food feels like fine dining at this award-winning modern Georgian building.

This modern tandoor eatery was once a canteen for Soviet farmers.

Beautiful palace stands tall over the Fergana Valley.

More than 10,000 small mirrors cover the curved surface of the world's second-largest solar oven, located in a remote village in Uzbekistan.

The rocks are a time capsule of a 407-million-year-old Earth.

The foundation of this ancient stupa dates back to the 1st-century.

Looking for a unifying history, Uzbekistan finds its answer in a 14th Century Turco-Mongol conqueror... despite the fact he wasn't Uzbek.

18m long sarcophagus of a constantly growing dead prophet.

Giant cauldrons overflow with Uzbekistan's favorite rice dish at this cavernous dining hall.

These "50 Fortresses" have been unearthed in the ancient oasis of Khwarezm.