Loading last scene

So I'm working on a Game Over screen for a game. Right now I got all the buttons set up nice and pretty how I want them. Right now though, I'm trying to figure out how to load a scene. Right now, I know that Application.LoadLevel will load a scene, but our game has several scenes, so I can't really tell it to just load the first level. So here's my question:

How would I load the most recently used scene?

Although I don't fully understand the question, it sounds like you need to save the index or name of the scene in question somewhere so that you can reference it when needed.

Common ways of storing such data are static member variables, objects marked as 'don't destroy on load', and PlayerPrefs.