I have recently taught in Edinburgh, which some call the "Athens of the north". So I can say I have taught in two Athens. I have yet to visit the one in America, but who knows.
Edinburgh is a beautiful old city with many original features still standing, and here is a picture of the castle taken from the gardens off Princes Street.
The other thing you may have heard about is the Edinburgh Festival, which now is among the largest in the world. It started out as a classical music international festival (which is still part of the whole event) but now has been somewhat eclipsed by the famous 'fringe' events which take place all over the city, even in back gardens and living rooms! There are also a jazz festival and a book festival at the same time.