Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

World's largest collection of serial killer artwork and other macabre exhibits.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The blinking light atop the iconic landmark has been sending secret messages for decades.

An iconic location along the Los Angeles River where countless movie scenes are filmed.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The highest bridge in America was built for an almost unnervingly small amount of money.

This spectacular track has run continuously since 1882.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

See massive fossils that are over 200 million years old in northeastern Arizona.

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