There are literally hundreds of places to stay in NYC, but if you're looking for an experience that's a little less traditional, Bivouac might be just the thing. This art project/campsite will be open in New Yorkin May & June, then head to London in August and Boston in September. In every case, the camp will feature seven custom-made tents that can hold up to two people (three if you want to get extra cozy), and a canteen that offers a kitchen, oversized communal table, library, and morning coffee. Oh, and did we mention it's on a rooftop? Yeah, so you get some nice views as well. Just don't go in expecting too much luxury, as Internet, electricity, and showers aren't part of the deal.