There are many different designs and ideas for bicycle parking...some are very simple and effective, while others are very elaborate and far more costly than your standard bike rack.
Photo credits go to the Bikehacks crew
I spotted these metal storage lockers at a mall here in Portland...they completely hide any bike from beater to Bianchi. There is also extra room in them for a bag or backpack along with your whip. After seeing these, I found this video of a fully automated parking structure in Japan (via Liveleak)
While the bicycle lockers seem secure, the latter appears to be very elaborate and potentially costly to build/maintain. Do security measures of this magnitude seem necessary for safe cycle storage...or are you content with a good quality chain, lock, and old fashioned bike rack? Tell us your thoughts in the comments section.