CASTLE NOVA

Although it appears built for a ten-year-old princess, Castle Nova is far from being child-friendly. No windows and the discreet entrance, this particular hotel only caters to couples hoping to find some privacy in the bustling city. From a panel outside it's a regular choose-your-own-adventure on the listing of available rooms that vary in appearance--some typical bedroom-esque, others following such themes as underwater, Hello Kitty, outer-space and so on. Every room comes fully equipped for the deed, and are surprisingly affordable unless you choose to stay overnight.