The hottest place on the planet.

Massive stele returned to Ethiopia after 70 years in Rome.

Wander among hulking piles of rusted machinery left over from the Eritrean-Ethiopian War.

The Dead Sea Scrolls were discovered in the ruins of this ancient monastic community.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

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

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.

This bike path was sunk below water level for maximum wonder.

This fantastical house shaped like a seashell brings aquatic design to architecture.

A serene plaza that commemorates one of the Granite State's most iconic figures.

Rainbow-hued in the summer and crystalline in the winter, this salty lake has inspired battles, temples, and plenty of awe.

Swirling layers of white and red rock earned these mountains their festive nickname.

Camels and crocodiles share the black waters of this stunning Saharan oasis.

This "cursed house" features secret rooms, hidden vaults, and dark escape tunnels.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

A unique music museum housed in a historic Boston theater.

In the 19th century, this was the center of Boston's Black community.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Fire meets ice at the southernmost volcano on Earth.