Four-story concrete hotel never opened to customers.

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.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

A giant Troll lurks under one of Seattle's oldest bridges.

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

An incredible garden taking over the interior of a massive sinkhole.

Australia's first open air museum and antique 3D theater.

Popular tourist destination now stands as a memorial to Sam the koala.

Fiberglass fish built in 1968 after months of fundraising.

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

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

Australia's largest traditional hedge maze features a Great Gnome Hunt.

A youth-centric science center hides an industrial triumph.

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.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

This piece of Australian modern art is part joke and part history.