The Hangar
At start of Moscow level there is in arch in front of you.
Turn around and to the left you will see a dome- go towards it.
Next to this there is a building. At the fifth window from the left, jump through the window.
Skate up the ramps until you see a box and jump into it.
It will tell you that you've found old skool level The Hangar.
More tricks, tips and cheats for this game are right here - Tony Hawk's Underground cheats
Comments for this hint