The tallest mountain in mainland Australia.

The Victoria-era quarantine station for Sydney.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

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

Come for the flowers, stay for the bats!

The statue honors an adventurous seafaring cat.

A monument to the 4,114 Irish orphan girls who arrived in Australia between 1848 and 1850.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

The bullet-banged DIY suit of armour belonging to Australia’s most famous outlaw.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

The largest United States military cemetery overseas.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

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.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This abandoned mine offers a glimpse at what life was like for those who came to Alaska seeking Gold Rush riches.

Considered by many to be one of the most dangerous highways in Alaska.

Experience a charming 1930's version of "infotainment."

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.