Many of the buildings at MIT are connected together so you can walk from building to building without having to go outside. It’s a blessing during the harsh winter months!

The infinite corridor is simply a very long hallway which runs straight through about 5 or 6 buildings altogether. It’s a convenient way to get from one side of campus to another. It’s usually teeming with people, and it runs through Lobby 7 and Lobby 10 (the lobbies for Building 7 and Building 10, respectively.)