The secret medieval communication system will whisk your words above the noise of the crowd.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A former Nazi lookout tower with a magnificent view of the Rhineland.

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

This striking landscape in northern Vietnam contains both geological and archaeological wonders.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

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

This Vietnamese bar doubles as a multistory labyrinth.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Perhaps the only one of its kind, the nearly-forgotten site once held mortal (and rigged) gladiatorial games between tigers and imperial war elephants.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

The Chinese have long been excellent at the art of copying, but this epic replica takes the biscuit.

Two nearly identical Chinese pagodas stand side by side, along with ancient stone relics.

The world's only full-size replica of the research hut used by Douglas Mawson for his 1911-14 Australasian Antarctic Expedition.

Bronze statues honor the brave explorers who passed through this Antarctic gateway.

This 2008 memorial commemorates two leading Aboriginal Australian rights activists.

Equipped with thousands of LED lights, this geodesic dome-shaped stadium is an engineering delight.

This modern pedestrian bridge on the Yarra River was modeled after an Aboriginal fish trap.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.