This network of tunnels housed an entire village for years, and even had a hall for screening movies.

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

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

Built for an exposition in 1915, these horticultural displays have stood the test of time.

The freeway that never was.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Famous and forgotten figures lie beneath the faded headstones and decaying planks of wood.

The oldest structure in a beachside California city was built to serve eight students.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

This cavern was used as a hidden hospital and safe house during the Vietnam War.

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

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

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

Life-sized painted illusions let pedestrians blend in with the street art.

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

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

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

This beautiful, historic church looks like something out of a simpler past.

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

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

The summer tourists on these cliffs are thousands of seabirds.