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.

New Zealand's epic shrine to all things puzzling.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

Hundreds of bras, blowing in the wind.

This preserved village shows the modest lifestyles of the area's 19th-century Chinese gold miners.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

A museum now occupies the mansion in Samoa where the prolific Scottish writer chose to spend the last years of his life.

The "Mother Temple of the Pacific Islands" stands at the center of 20 acres of lush, tropical prayer gardens.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

A site of natural wonder and flying coconuts in Samoa.

Monumental paintings, discovered in a Mexican cathedral in 1957, depict the deaths of some friars in Japan.

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

The extremely grey columns of one of Mexico City's most iconic beltways are slowly gaining a bit of color.

A series of modernist, abstract sculptures form a route created as part of the 1968 Olympics' Cultural Olympiad.

This ancient structure was built by a mysterious civilization that was largely destroyed by a volcanic eruption.

Frida Kahlo's childhood home, now a museum of her life and works.

The jewel of the museum is a rare tumulus, a funeral decoration from the 18th century.

A wall of this old hotel was decorated with drawings made of pebbles during its construction.

This "cursed house" features secret rooms, hidden vaults, and dark escape tunnels.

A skeleton without arms watches over the side door of one of the most beautiful baroque temples in Mexico.

This centuries-old mine remained hidden beneath a hotel bar until 2013.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

The museum houses "the most studied meteorite in history," among other geological oddities.