Riyadh
 

I'm going to be in Riyadh for a week on business. Does anyone have recommendations on sights to see in or close to Riyadh? Thanks.

Interesting camel market (not as big as Cairo's, but very photogenic). There are also some ruins just outside the city that are described in Lonely Planet, plus the old area around "chop chop" square. Also, a pretty good zoo, that had wild dogs when I visited in 2001.