A few nice Servers images I found:

Server room


Image by VespaGT
On rack 1 a series of production servers (Windows based).
On rack 2 the mail server and a few other machines.
On rack 3 another load of file servers, print servers, web servers, whatever servers.

Server room with grass!


Image by Tom Raftery
Promotional pic sent by 1E re their new NightWatchman Server edition (if you look closely you can see it is a single row of servers mirrored)

Server stuff


Image by Lee Bennett
A second rack is going into place. More servers. Nifty new tape backup system. Insane battery backup capacity.

They’re probably going to need a bigger room soon.