I'm tagging along on my husband's business trip to the Houston/Galveston area in late May 2012. He'll be attending a conference on Monday and I'm looking for an area that he can drop me off in that has a lot to offer that I can walk to on my own. Need to kill 8-10 hours (approx. 9am-7pm) by myself in a safe area with places to eat lunch/dinner. Was thinking of the Museum District. Any suggestions?