Wouldn't it be nice to escape the expensive and cramped confines of the Manhattan real estate market and live in a modernist house boat on the Hudson River? Designers Flo Florian and Sascha Akkermann of design firm Confused Direction have created this one. It features a green roof, 250 year old larch wood salvaged from a farmer's shed and produces zero-emissions.

And best of all: no co-op board approval required.