The Silver Enclave ( Alliance Dalaran Area)

[Poisons]

Horde Only- Silver Enclave

This has already been posted but again this is another way to get there...
(Note: You only have a small area to walk around in but it's fun for you to wave at alliance)

Firstly you'll mount up fly over the outdoor section...
Then line yourself up with the Circle in the image below and fly down onto it
(Please note: Only useable with flying mounts, not flight form).
Then dismount, and you should be able to walk around the first stairs.