Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

One of only two commuter aerial tramways in the United States.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

An open air haven for tropical monkeys in the damp moors of the English country.

Perhaps the only prehistoric monument with its very own public bus stop.

The largest greenhouse in the world is home to over one million types of plants.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

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

Three-story concrete ram with a permanent gift shop.

This massive water spout has been luring visitors for hundreds of years, some to their death.

Concrete spud looks like the North American Sebago.

Entrance to a famous orchard with nine types of apples.

Come for the flowers, stay for the bats!

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

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

Homage to the local produce now serves as a car dealer.

Monument that stands 40 feet and weighs 1,000 pounds.

One of the first big sculptures anywhere in Australia.

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

The only pollutant in the clear blue water is sunscreen.

A giant Australian fruit and tropical farm.

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