The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Strange, gentle beasts resembling goat-cow hybrids roam within this patch of forest.

This giant Buddha statue has 125,000 smaller Buddhas hidden inside it.

This Himalayan airport provides one of the most difficult landings in the world.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

This hidden art nouveau gem was designed by an architect in search of a national style.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A striking symbol of the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

Festival of Perpetual Life and Rebirth.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.