A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A hip bar decorated with walls of golden skulls.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

A former plague hospital turned medical museum.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Colorful and chaotic stacked hotel in North Holland.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Peek through a transparent pyramid and drink in the mountain made of books.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

A cave's rare beauty held a cavernous secret hidden underground.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A clear blue swimming hole with hidden caves, still unexplored.