My most favorite level in the world is Hong Kong in Deus Ex, everything about it is amazing. Theres tons of tunnels, secrets, doors, apartments, rooms and all around coolness to be seen. One of my favorite things about that level (this shows how easily impressed I am) is when you're in that giant, corporate skyscraper and you can see about 50 stories down onto the Hong Kong street. The street is also left just how you left it before you went into the skyscraper.