A Buddhist shrine in a cave protected by macaques next to dark passages lined with creepy paintings.

The golden Buddha statue at the Wat Muang Monastery is the tallest in Thailand, and the ninth-tallest in the world.

During the rainy season, this temple is almost entirely submerged, accessible only by boat.

Monkeys lounge around at this 13th century temple.

Six times a day a train runs right through the middle of this Thai street market, sending vendors scrambling.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

Romans built the world's tallest artificial waterfall in 271 BC.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Crushed coral and crystals give the sand its signature coloration.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

An Italian hillside ghost town.

Geothermal waterfalls in Tuscany.

Pompeii's less famous neighbor is still revealing her secrets.

A submerged archeological park still holds the wonders of a Roman Sodom.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

This historic stone bridge has an entire neighborhood clinging to its sides.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Ruins of a German Castle on top of a towering stone pillar.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

Step inside an ancient beehive tomb built for a mysterious cult hero.