I just stumbled across this while mindlessly surfing the other night.
Largest image collection of some truly astounding antique bikes that I have ever seen.
Many many hours can be lost rummaging through there.

http://www.nostalgic.net/arc/bicycles/

Here is what caught my eye right off of the bat.


1910 Pierce Chainless

Not to mention:



Just tons and tons of bikes, and they are all shot from a bunch of different angles too.