Roger Ebert may have famously said that video games cannot be art, but the good people at the Smithsonian American Art Museum in Washington, D.C. know better.
They will be opening a new exhibit called The Art of Video Games, running from March 16th to September 30th, 2012. In order to choose which games get inducted, the Smithsonian is currently requesting that the public vote for their choices. The site currently has an online voting system active, allowing people to vote for 80 games across a pool of 240, across 5 gaming eras from the early Atari days to modern consoles.
It's not a bad selection of games, although there's always some puzzling omissions with these things. But remember, it is an art museum, so they're looking for visually impressive or beautiful games, not just ones of historical significance. This might explain some of the choices they made.
Go vote for your favourites here.