The painted and decorated towers of this Hindu shrine were once the tallest structures in one of the oldest cities in India.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

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

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

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

Magnificent Roman ruins lie vulnerable to destruction on the edge of the Mediterranean.

A fantastic castle rumored to be the birthplace of King Arthur.

A battle between nature and architecture in the Cambodian jungle.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Largest lake in Great Britain measured by surface area.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

The largest hewn stone in history.