I've made my way to Frankfurt, Germany. Tomorrow I will be taking the train to Regensburg. I will post all of my photos on my photo sharing site later here.
All throughout the airport I've seen these exit signs and they reminded me of the signs you see inside the game Portal.
Here is a picture of one of the signs. (I didn't take this picture. I can't get my memory card reader to work right now.)
And here is a logo for the game: