The best *Free* MMORPG out there.
The game in itself is huuuuuuge, and looks increadible and Perfect World centers on flight, and has many floating structures and areas. The game shifts from night to day and sunny to rainy season on a regular cycle, changing the view of each area with time, for realism.
Classes and Races:
Human ... Boring ;) Can be: Magican and Warrior
Wing elf: Can fly with wings at level 10