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.

The world's oldest bookshop still in operation.

A small subculture of boat dwellers keep their traditional way of living alive at this Hong Kong Typhoon Shelter.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

A station built to repel pirates now attracts wealthy vacationers.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

A biblically accurate ark located beneath a Hong Kong bridge is fun for the whole Christian family.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

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

Thousands of abandoned statues of deities are taken to this hillside in southern Hong Kong.

A pair of trees near a Hong Kong shrine are said to grant wishes, but only the ones they hold on to.

In Hong Kong, a fairytale flower tunnel is hidden within the gardens of a public housing complex.

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

This hulking behemoth is actually five interconnected towers built in the 1960s.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

A private residence adorned with a gorgeous mural dedicated to the buzzing insect.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.