Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

This black church sits alone among a field of lava rock.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Secret North Korean passage discovered below the world's most dangerous border.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Peace Park and the Atomic Bomb Dome.

Japanese island famous for poison gas and fluffy bunnies.

The quintessential Japanese rock garden has existed for more than 500 years.

The 10,000 Torii shrine.

This ancient shrine has been rebuilt every 20 years since the eighth century.

This pair of small sea rocks has been "wed" using rope and ancient Shinto tradition.

These Japanese gardens are blankets of light for dark winter nights.

From under the bed of one of the co-founders, this server helped launch the notorious file-sharing website.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

The mummified relic of St. Antoninus.