If you're pretty much fully invested and just want to try to add a bit of U.S. dash to your portfolio, go with the stock with the most momentum in this group: Union Pacific.

During stops at the Nob Hill Cafe, Huntington Park, Pacific Union Club, Fairmont and Mark Hopkins hotels, tour members learn about San Francisco history and vampire lore.

Other companies that have decided not to provide annual earnings estimates for 2009 include Costco, a big American retailer, and Union Pacific, an American railway company.