Difficult problems beget ingenious design solutions. Tokyo's stunning levels of overcrowding pose one of the most severe architectural constraints around--it's one of the reason that it's become home to lots of amazing architecture and product design. In that vein, two design firms have solved a problem you might not have even guessed existed, by creating apartment complexes aimed specifically at giving motorcycle fetishists a safe place to park—and show off—their rides.

Here's one by Nakai Architects:

Here's another by Love Architecture:

Also worth remembering, for car freaks: A house that shows off your car, by making the garage into a glass box connected to the living room:

[Via What We Do Is Secret and Desire to Inspire]