Museum preserving torture methods from the past.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

The longest burning light bulb in the world.

This is Bremen’s oldest historic district, famous for its labyrinth of narrow medieval alleys lined with tiny, colorful 15th-century houses that resemble beads on a rope.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

Furniture tries to escape an abandoned building in San Francisco.

A historic office and commercial building located in the heart of downtown San Francisco.

This colorful boulder serves as a canvas for political statements and artistic expression.

Wander down a side street dedicated to one of the members of the Beat Generation.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

This private residence was the template for one of the most beloved television homes of all time.

Golden Gate Park's historic collection of plants.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.