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

This extraordinary geological oddity resembles human-made pavement.

One of the best beaches in the entire world.

This historic Australian bridge was built by convicts with giant stone spikes to prevent cattle from falling off the sides.

Aqua white sand highlighted with fiery red rocks.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Occult books, tarot, oddities.

The world's smallest drawbridge.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

A tropical paradise once home to space exploration and military installations.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Thailand's tribute to the original "Siamese Twins" Chang and Eng, in the town the famous pair was born in.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

A strange aquarium with stuffed fish, and almost no water for them to swim in.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

In Egypt's expanding metro area, many of the neighbors are dead.

Slum Settlement Filled With Mountains of Garbage.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

The once highest point in China blends symbolic design with a kick of adrenaline.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.