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

As one of the world's largest hydroelectric dams this plant took two countries to get built.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

A 125-meter long "tribute to the Brazilian people."

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

This striking, two-toned confluence of rivers is visible from space.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

A battle between nature and architecture in the Cambodian jungle.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

South Korea's largely symbolic, barely used gateway to the North.

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

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

This iconic hilltop church doubled as a lighthouse in the 19th century, guiding ships into the port of Valparaíso.

This historic Chilean cemetery is the burial place of hundreds of European and American freethinkers and non-Catholics.

What was once a unique system of urban elevators is turning into a mechanical ruin.

These spectacular ruins were built by Spanish padres in the 17th century.

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

This stunning mass of ice spans 121 square miles and is still growing.

A display of hand-built replicas of the legendary vessels used by Patagonian and Antarctic explorers.