Palomar Observatory | observatory, California, United States | Britannica
Vanderbilt Space Observatory | Planetarium On Long Island, New York
Goodsell Observatory – Carleton College
Racine Astronomical Society - Modine Benstead Observatory
Perkins Observatory – Observatories of Ohio
TMT International Observatory
Lick Observatory - Wikipedia
The 10 biggest telescopes on Earth | Space
TMT International Observatory
The Clark Telescope, built in 1896, at Lowell Observatory in Flagstaff, Arizona | Library of Congress
Perkins Telescope Observatory
The Great Equatorial Telescope | Royal Observatory Greenwich
University Observatory | American Public University System (APUS)
Mt. Hamilton Telescopes: Great Lick 36-inch Refractor
Modern Telescope in Observatory Stock Image - Image of construction, eyepiece: 90005145
Palomar Observatory: Facts & Discoveries | Space
A brief history of Cincinnati Observatory and its heirloom telescope
Ballreich Observatory – Observatories of Ohio
Telescope observatory hi-res stock photography and images - Alamy
New telescope a 'game-changer' | Phillips Exeter Academy
New telescope a 'game-changer' | Phillips Exeter Academy
An overview of the design for the Thirty Meter Telescope Observatory. | Download Scientific Diagram
Telescopes | UCL Observatory (UCLO) - UCL – University College London
