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

This dark, damp, perilous tunnel is the only passage from north to south Tajikistan.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

Huge stairway leads to this massive gallery.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A unique work of automotive art calls this shopping center home.

A beautifully eclectic mix of architectural styles.

Cat art as far as the eye can see.

The large collection of pre-Columbian pottery might make you blush.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

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

Brush shoulders with animatronic Arab leaders made of silicone.

Lebanese castle built by one man, over a lifetime.

Mummies preserved naturally for seven centuries.

This modernist cinema has survived war and reconstruction to become a symbol of Lebanon’s revolutionary spirit.

A patchwork of ruins from various civilizations in one of the world's oldest continually inhabited cities.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

The largest hewn stone in history.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

Lumps of significant stone from around the world surround a flaming monument for peace.

The location of the world's first telescope demonstration.

An old tram depot transformed into a vintage car paradise.

Modern museum, designed for Jihadi tourists.