Here's a fascinating look at a high-tech bicycle parking solution being used in Japan.  To promote a high percentage of mode share in dense urban areas, designers of end-of-trip facilities must carefully consider the needs of cyclists.  This system is efficient, secure, and satisfying to use (at least according to the users interviewed in the video).  Additionally, space above ground—previously consumed with bike racks—is liberated for other public uses.  The video has some interesting insight into the design and construction of such a facility.