The soaring gondola lines form the longest aerial cable car system in the world.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

This abandoned viewing platform has become a monument to unnecessary government spending.

A completely underground tour following the path of the most precious element: water.

A small house sits between two huge rocks, with its back to the sea.

A swamp that was the site of prehistoric water burials also managed to preserve its corpses for millennia.

The world's most famous donkey lives in this pen.

This Colorado fire station has been in continuous operation for more than a century.

One of the first canal boat-lift inclines ever created.

In Houston's airport, a cow is properly equipped to jump over the moon.

A community museum celebrates Glasgow's mighty shipbuilding days.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

The deepest spring in Missouri.

Often referred to as the largest spring in America.

Nature's biggest mammal swims in landlocked Oklahoma.

The grounds and buildings of an old wood pulp mill have been transformed into an innovative art park and museum.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

Old submarine parts have been converted into faux whale fins.

One of the newest mosques in a city filled with thousands.

It's said taking a hammer and nail to this stone relieves a toothache.

Started as a kitchen garden, now the second largest botanical garden in the world.

Watch butterflies take flight before you fly.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.