Medicinal spa created with the discharge from a geothermal energy plant.

A magical place that lets you play in and explore the world of Studio Ghibli.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A large boulder marks the place where the island of Manhattan was purportedly "sold" to the Dutch.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Avoid gangster interaction while window-shopping.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

An artist's cute bronze subway sculptures belie his violent artistic past.

The "Seinfeld" diner.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Elevated freight railway turned wildly successful urban park.

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

2300-year-old Roman road connecting the empire.

Breathtaking and huge 430 year old maps of Italy.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Three prestigious academic collections come together to create a world-class natural history museum.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

This elaborate towering structure was once famed for its revolutionary height.