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A Stamp printed in USA shows the Map of Antarctica and devoted to 10th anniv. of the Antarctic Treaty, circa 1971
Cancelled Stamp From The United States Featuring Five Native American Tribes That Were Forced To Resettle In The State Of Oklahoma.
A viewing telescope on a pier, with a shallow depth of field
A close up of coin-operated beach binoculars.
The grandeur of Griffith Observatory stands out against a moonlit night sky. A breathtaking sight to behold.
Parkes radio telescope, New South Wales
A sextant device is a marine navigation instrument which is used to measure the angle between two objects.
Mount Evans, Clear Creek County, Colorado, USA: Ruins of Mount Evans Crest House and the Meyer–Womble Observatory (MWO) astronomical observatory - The crest house was completed in 1941 and destroyed by a fire in 1979. Designed by the architect Edwin A. Francis for the German national Justus 'Gus' Roehling. Terminus of the Mount Evans Scenic Byway - Mount Evans is the highest and most famous mountain in the Front Range, a mountain range of the Rocky Mountains. At 4,350 meters (14,264 feet) in height, it is one of the 54 so-called 'Fourteeners' in Colorado, i.e. the peaks over 14,000 feet in height. Of these, it is the closest to Denver
Antique photograph of British Navy and Army: Marine surveying in India
Late afternoon summer photo of the North Lighthouse, New Shoreham, Block Island, Rhode Island.  August 2023
Carnarvon Satellite dish with southern cellestial stars spinning around dish .  Australia
park with clouds
Cancelled United States Of America 3 Cent Stamp
The Mauna Kea observatories at the top of Mauna Kea (13800 ft) in Big Island, Hawaii
Mobile military radar unit for air surveillance.
Parkes radio telescope, New South Wales
observatory with milky way galaxy, long exposure photograph, with grain
US currency,  copper Indian Head penny from 1862.
The landmark locator on the top of the observation tower on the Blue Mound of Blue Mounds State Park in Wisconsin  (elev. 1,716 ft (523 m). The mountain, as most of the other large mounds of the Driftless Area, is an outlier of Niagara  Escarpments. The viewer provides a guidance to locate Madison, the capitol of Wisconsin, Devil's Lake State Park , a glacial lake between an  ancient hills which are formed of quartzite rock, and many other places of South Wisconsin.
Torquay, UK. Saturday 16 April 2022. Very short Berry Head Lighthouse on the coast in Devon.
Tourist binoculars at the viewpoint of Santa Catalina Castle in Cadiz, overlooking the sea.
Nosappu cape in Hokkaido
Roque de los Muchachos Observatory on La Palma, Canary Islands
Gothenburg, Sweden - June 03 2023: The indiaman replica Gotheborg at port in Gothenburg.
Walkway and telescope on the pier in Southend, England, UK.  Southend has the longest entertainment pier in the world.
Cancelled Stamp From From India Featuring The Nuclear Power Plant At Trombay
Saint Augustine, Florida, USA- January 3, 2023- Tourists and visitors stand on the outside balcony of the Saint Augustine Lighthouse (1871) for spectacular views of  the area around the northern end of  Anastasia Island
Lunokhod 1 (AAAAAAA' ) landed on the Moon November 17, 1970 and operated for 322 days sending back pictures and soil analysis of the Moon.- See lightbox for more
A huge white satellite antenna under clear sky
Free Images: "bestof:Navy Expedition to observe the 1889 solar eclipse from Africa. Professor Bigelow’s Electric Dial. Photographed by Herman S. Davis, who was the assistant"
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