Tony Hawk's Underground 2 Easter Eggs

Just like in the first game, Tony Hawk's Underground 2 is full of easter eggs. Here are some; I'm sure there are more:

The Triangle Level is unlocked upon completing Classic Mode. There is an oddly colorful pirate ship in this level. This ship was... more

go on to the los angeles level and get speed on the quarter pipe behind you and grind the rail to the roof of the building in frount of you once there ollie twards the freeway and grab it with you hand look at the cars go by. you will notice that one... more