Grand Theft Auto IV

It is its exacting attention to every detail that makes this virtual city, this Liberty City, so absolutely real.
Whether it's the sound of a radio station from a passing car, the hilarious one-liners being shouted ("You stupid malaka!", "Do I have to kill to get woman???" etc.) from random bystanders, the way you drive over the Brooklyn bridge while listening to Jazz Nation Radio and the setting sun is making everything look like an Edward Hopper painting...
One could go on and on like that forever.
If videogames ever got close to becoming works of art this is one such instance where one at least succeeded.
And there are many more.