How To: Combine Two NYC Penthouses into One

Here's a rich man's problem for you: two NYC East Village penthouse condos and the need for one combined living space. What do you do? Simply add a helical slide! When the homeowners came up with this fun idea for combining their two condos, they contracted architecture firm TCA to design and construct two separate options to descend and ascend between the two living spaces— an Italian-made "Rintal" stair (an open spiral staircase), or the much speedier and much livelier option: a stainless steel, Frank Gehry-esque slide. 

Says TCA, "The image of the stainless steel curves in front of the oversized window to the city beyond, to say nothing of the irrepressible glee of grown adults on the slide, is surprisingly poetic; with careful detailing, the playground element is an unexpectedly elegant addition to the space."

They should have omitted the stairs entirely, and forced all up-and-down to be slide-only. But I suppose that might be a problem when Grandma comes to visit...