Some of the observatories I have personally used...
The clouds may look nice, but they're not good for observing
Villanova Public Observatory, Villanova University
Villanova Research Observatory, Villanova University
40' Guest Radio Telescope, Green Bank National Radio Observatory
"Urban Life Observatory", Georgia State University
Hard Labor Creek Observatory, Georgia State University
SMARTS 0.9m telescope, Cerro Tololo InterAmerican Observatory
1.8m Perkins telescope, Lowell Observatory
More info later