Prague cathedral... Audio tour

Not really knowing where to begin, we headed to the ticket office.
Hooked ourselves up with tickets, maps and a three hour audio tour
device, with a mere 50 points of interest. The palace grpunds were
swarming with tourists, and the awesome thing about the audio tour was
that you get to skirt some long lines into the buildings, and move at
your own pace.

Frist stop was St. Vitus cathedral.