Ship skeletons haunt Baltimore's waterways.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

This iconic science fiction house still looks like something from the future.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

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

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

An Irish Memorial commemorating those who perished due to potato blight.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

A layered tribute to the work of mosaicist Isaiah Zagar.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

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

A giant roll of mints marks the birthplace of one of America's most famous candy brands.

Three gardens with toilets and urinals filled with bright flowers started as a protest against zoning rules.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.