The trip of a lifetime awaits you in San Francisco. Join the Big City Adventure treasure hunt and search for thousands of cleverly hidden items. Travel to some of San Francisco's most famous locations. Earn 60 postcards containing many fascinating and obscure facts about San Francisco and its history, plus, earn 60 cool mementos from the amazing locations you'll visit.
What's new in this version:
This version is the first release on CNET Download.com.