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vintage Columbia postage stamp on black.
Astronomical observatory buildings in hawaii
Cancelled Stamp From The United States Featuring Frederick Douglass A Greater Writer And Former Slave.  He Died Over 115 Years Ago In 1895.
SAN JOSE, CALIFORNIA - CIRCA OCTOBER, 2021: The Lick Obsevatory dome with a reflector telescope against blue sky. Tauchmann telescope building on a mountain top research facility.
D6-42-24-742 UK Infrared & U of Hawaii Telescope
Mount Evans, Clear Creek County, Colorado, USA: Meyer–Womble Observatory (MWO) astronomical observatory and the valley below -  property of the University of Denver. Located near the summit of Mount Evans in the Arapaho National Forest, at an elevation of 4,326 meters (14,193 ft), it is the third-highest optical/infrared observatory in the world.
Back, national side of 2 Euro coin from Austria shows world in the form of a euro symbol, family, Eurotower, ship, factory, and two wind turbines, minted in 2012, commemorative coin
Large radar towers on 9500 foot  Francis Peak, Utah.
Egypt postage stamp: Pyramids
Old USSR money close-up on a white background. Macro photography of retro coins of the Soviet Union, vintage details
Postage stamp printed in USSR devoted Happy New Year, 1963
Postage Stamp - Greetings from Illinois
Production building by the lake from money - kroner
A 1998 Austria postage stamp with an illustration of a landscape scene within Kalkalpen National Park in Upper Austria; postmarked in Vienna (Wien).
Gemini North Observatory on top of Mauna Kea mountain peak on Big Island of Hawaii, United States with deep blue sky and volcanic landscape.
White Pine Stamp. From the 1978 \
Cancelled Stamp From The United States Featuring Five Native American Tribes That Were Forced To Resettle In The State Of Oklahoma.
Old USSR money close-up on a white background. Macro photography of retro coins of the Soviet Union, vintage details
Rim of volcano on La Palma, Canary Isles. Telescopes of observatories.
Postage Stamp - Greetings from Utah
Postage stamp printed in China shows Great Wall, 1995
The observatory dome atop Palomar Mountain, California, USA.
Astronomical and meteorological observatory near Skalnate pleso or tarn or lake in the High Tatras, Slovakia
Cancelled Stamp From The United States Featuring Five Native American Tribes That Were Forced To Resettle In The State Of Oklahoma.
Pic du Midi is a mountain in the French Pyrenees. It is the site of the Pic du Midi Observatory
Radar station on the summit of the Grand Ballon, at 1,424 metres the highest peak of the Vosges (Alsace, France)
Cancelled Stamp From The United States: Mt Rushmore National Monument.
View of Los Angeles from Griffith Observatory
1977 issue stamp commemorating Charles Lindbergh's 1927 solo transatlantic flight.
Free Images: "bestof:Palomar Mountain Observatory 3c 1948 issue U.S. stamp.jpg Palomar Mountain Observatory 3-cent 1948 issue U S stamp 1948-08-30 U S Postal Service; National"
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Former observatory restored, Sierra Nevada, Andalusia, Spain.jpg
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Robinson_Mountains_and_Guyot_Glacier_(2).jpg
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Conducting_a_Loon_Survey_(Citizen_Science).jpg
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