This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

Ancient temple is home to centuries of art and spiritual artifacts.

Giant topiary dog once played a role in a terrorist bomb plot.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The palatial McDonald's that inspired Wesley Willis.

A layered tribute to the work of mosaicist Isaiah Zagar.

Century-old shop, specializing in Occult products.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.