This supper-club-turned-concert-venue still serves drinks at its original rotating bar.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This cave holds a surprisingly colorful variety of geological oddities.

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

Prolific outsider artist Sid Boyum's concrete sculptures add whimsy to Madison's Schenk-Atwood neighborhood.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Where experiments are conducted on all things wood.

The arboretum whose marshy soil sucked up the dreams of housing developers.