The U.S. Open moved from Forest Hills to Flushing Meadows Park in 1978.
The lea side of a hill is the side that has a meadow called a lea. You probably mean the lee side, which is the side away from the wind.
If you bought the venue, you will have to read the real estate requirements via the pie menu on the map when you click on the venue, and buy those upgrades to be able to open the venue to the public; until you do so, the venue will stay closed.
yes it looks like it
Flushing Meadows, New York.
The Olympic Club in San Francisco, CA.
National Tennis Center in Flushing, Queens
a high or open place like a hill or a meadow
It's the site of the U.S. Open tennis tournament.
At the moment, Coldplay is not on tour. Restrictions on age vary from venue to venue, though it is likely that Coldplay would be open to guests of all ages.