One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

One man's ambition created this psychedelic log home.

The middle finger of modernity.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

The notorious headquarters of a corrupt political machine.

The most confusing clock in New York.

Red frames showcase remnants of one of New York's original subway stations.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Former laboratory of radical psychiatrist Wilhelm Reich.

Thousands of bats stream out of caves every night on the edge on Thailand's second largest park.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

Macabre astrological automaton clock dating to the late 1400s.

Haven for steampunks.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A huge resale shop for the cast-offs of the film & television industry.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

Sniff the Titan Arum's rotting flesh.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

Resting place of Hollywood's immortals is also site of summer film screenings.

The legendary building that needed ghostly approval before being built.