2007 Legg Mason Tennis Classic: This event begins on Saturday July 28th and runs through the following Sunday, August 5th. Begins at 9am Saturday, July 28, and at 11am on Sunday, July 29.
Amazing Race Sherlock Hunt of DC: This sounds like a really fun event. It is a scavenger hunt around D.C. It starts at Thunder Grill (50 Massachusetts Avenue Street Level-Main Hall-Union Station) at 11:30am on Saturday, July 28. Costs $20.
Capital Fringe Festival: This festival ends the 29th. Performances by exploratory artists. Low ticket prices. Special Events on the 29th are the Fricnic 11am to 9pm and the Wrap Party 11pm to closing. Both are at the R & R Bar and Lounge located at 717 6th St. NW. No Cover, 21+.
D.C. United vs. Club America: If the tennis classic is not your thing, then perhaps you would be more interested in seeing a soccer game. D.C. United is in town on Sunday, July 29. The game starts at 8pm at RFK Stadium.
Lincoln Assassination Tour: This tour takes places every Saturday night starting at 7pm until October 27, 2007. It begins at Lafayette Square Park and costs $10.
Phantom of the Opera: One of the current performances at the Kennedy Center. Runs weekends through August 12. Showtimes are Friday 7:30pm, Saturday 1:30pm and 7:30pm, and Sunday 1:30pm.

These are just few events this weekend. If you have any that you know about in the D.C. area this weekend that you would like to share, then please let us know in a comment to this post.
D.C., Metro, weekend, scavenger hunt, soccer, tennis, lincoln