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

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

A Canadian port town is oddly home to two of the largest tree burls in the world.

The easternmost town in Alaska can only be accessed from Canada.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Europe's oldest still-operational tea farm also boasts a spectacular view.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

Europe's largest community of crocodiles and alligators.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

His "Lionheart" is entombed separately from the rest of his body.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

A moving memorial to the fallen and missing from WWI trenches.

This memorial museum chronicles the apocalyptic destruction of the First World War.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

Single runway interrupted by a busy road that cuts across its middle.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Bronzes and busts that once stood in the city's main squares are now relegated to a small hidden courtyard.