The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Venture into the hideout of one of Hong Kong's legendary pirates.

Climb to the top of the world's largest seated bronze Buddha.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Highly spherical boulders on the shores of New Zealand.

A perfect turquoise lake colored with glacier dust.

New Zealand's epic shrine to all things puzzling.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

One of the world's steepest streets seems to have houses sliding down it.

New Zealand's only running funicular railway.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Hans Christian Andersen for the postmodern world.

Copenhagen's celebrated theme park and gardens.

Model Trains and Much More in Hamburg.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.