5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

A network of fortifications that never saw conflict.

A journey through a collection of classic cars and fashionable artwork.

The ruins of New Zealand's largest classical-style church.

An unusual and powerful memorial in which earthquake victims are remembered by empty white chairs.

New Zealand's only running funicular railway.

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

Native Australian lizards inhabit this garden celebrating Sydney and its sister city in China.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

This grim museum collects artifacts and evidence of some of the most sensational antipodean crimes.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Come for the flowers, stay for the bats!

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

One of the best beaches in the entire world.

A popular swimming hole that hides one of America's most deadly diving spots.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Football field-sized microalgae production tanks on the Hawaiian coast create a stunning view from space.

A controversial memorial at the place where Captain Cook met his violent end.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.