Here’s something you probably know: Doom II (1994) and Seinfeld (1989-1998) are both pieces of popular culture released in the 1990s. They both had huge audiences and now two decades later, they are still as well known as they were when Bill Clinton was in office. In fact, this year’s Doom was released to great reviews. And you can probably turn TBS on right now and catch an episode of Seinfeld. But here’s something you probably don’t know: Doom and Seinfeld have now been coupled. Yes, thanks to the work of Doug Keener, it is now possible to explore Jerry’s famous apartment in Doom…