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

The last street gas lamps in Hong Kong.

This French colonial post office is arguably the grandest in all of Southeast Asia.

From neon green watering holes to bleached elephant foetuses, this Mozambique museum makes natural history weird.

This small roadside eatery exists in both the Northern and Southern hemispheres, as the equator runs right through it.

This beautiful 16th-century necropolis marks an astonishing feat in heritage conservation.

Five miles of underground river link lake to ocean.

Founded as a refugee camp, now a popular tourist spot.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

A small part of Russia that does not touch any other part of Russia.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

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

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This bridge was constructed from the rubble of the infamous Bastille.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

Structure built from the skulls of vanquished foes.

Singapore's landscaping project is home to 18 incredible Supertrees.

A historic freight system that found the true gold rush is in tourism.