This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A psychedelic labyrinth on the San Francisco bay.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

The first full-scale tunnel built in America is short but scenic.

The site of the one of the most deadly train wrecks in American history.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

The small cave that housed Tennessee's "first citizen."

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The first (but not only) upside-down house in Germany.

This replica of the Greek structure is in the heart of Nashville.

Eighteenth century house of the mysterious "Father of Raleigh."

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

A monument to the sheer amount of oddities one can collect over a lifetime.

An exotic reptile facility showcasing some of the rarest, most venomous snakes in the world.

The world's largest vertical wind tunnel.

Burial site more than 300 years old.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

This vast kitty-themed collection illustrates the history of human-cat interaction.