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Each day, thousands of Virginia commuters hurtle (or crawl, depending) across the Theodore Roosevelt Bridge. To their left is the Kennedy Center. To their right is the Lincoln Memorial.

And directly in front of them, on a grassy knoll at the end of the bridge, is a 6-foot silver bullet.

Nestled between memorials to assassinated presidents, the bullet’s location is, perhaps, morbidly appropriate. Still, a more unapproachable site for this strange totem would be hard to find. Surrounded by the bridge and its on-ramps, the knoll is all but inaccessible. The truly curious, or the truly stupid, would have to stop their car and vault the guard rail to investigate.

But an investigation is clearly not welcome, for a ring of fir trees—a sort of eco-Warren Commission—has been planted around the bullet to obscure it from prying eyes.

Perhaps, elsewhere in town, a grove of trees hides a second bullet.

A Washington City Paper T-shirt will be awarded to the person who does the best Jim Garrison impersonation and uncovers the truth about the KenCen cartridge. Inspired answers will appear in next week’s edition if they reach us by Tuesday. Submit your description, or suggest topics for this column, by writing to: Mysteries, Washington City Paper, 2390 Champlain St. NW, Washington, DC 20009. Our fax number is (202) 462-8323, or e-mail us at Mysterieswashcp.com. No phone calls, please.