If you're wealthy enough to afford an NYC penthouse, you might as well have some fun with it.
That's what architect David Hotson did with his NYC penthouse exit slide. The fascinating exit mechanism is a four-storey tall coiled slide that begins in the attic of the penthouse. Small windows put into the sides of the slide allow light to enter and provide a fleeting glimpse of the environment for the slider. According to Hotson, "The first leg of the slide passes through the attic glass, coils around the column over the guest bedroom, then slips through a second seamless glass window and out over the stair." There is also landings on each floor that range from the attic to the front lobby.
The ultra-modern NYC penthouse slide is actually installed in a late nineteenth century building.