Mount Laguna Observatory (MLO) is an astronomical observatory owned and operated by San Diego State University (SDSU). The telescope was operated in partnership with the University of Illinois at Urbana-Champaign (UIUC) until 2000. MLO is located approximately 75 kilometers (47 mi) east of downtown San Diego, California (USA) on the eastern edge of the Cleveland ...

The Mount Washington Observatory (MWObs) is a private, non-profit scientific and educational institution organized under the laws of the state of New Hampshire. The weather observation station is located on the summit of Mount Washington in New Hampshire. The Observatory's mission is to advance understanding of the natural systems that create the Earth's weather and c...

The Mount Wilson Observatory (MWO) is an astronomical observatory in Los Angeles County, California, United States. The MWO is located on Mount Wilson, a 5,710-foot (1,740 m) peak in the San Gabriel Mountains near Pasadena, northeast of Los Angeles. The observatory contains two historically important telescopes: the 60-inch (1.5 m) Hale telescope built in 1908 and the...

Palomar Observatory is a privately owned astronomical observatory located in San Diego County, California (USA), 145 kilometers (90 mi) southeast of Los Angeles, California, in the Palomar Mountain Range. It is owned and operated by the California Institute of Technology (Caltech) located in Pasadena, California. Research time is granted to Caltech and its research pa...

The Parkes Observatory (also known informally as "The Dish") is a radio telescope observatory, located 20 kilometres north of the town of Parkes, New South Wales, Australia. It was one of several radio antennae used to receive live, televised images of the Apollo 11 moon landing on 20 July 1969. Its scientific contributions over the decades led the ABC to describe it ...

The Pulkovo Astronomical Observatory, the principal astronomical observatory of the Russian Academy of Sciences, located 19 km south of Saint Petersburg on Pulkovo Heights 75 metres (246 ft) above sea level. It is part of the UNESCO World Heritage Site Historic Centre of Saint Petersburg and Related Groups of Monuments. The observatory was opened in 1839. Originally, ...

The Ring of Brodgar (or Brogar, or Ring o' Brodgar) is a Neolithic henge and stone circle on the Mainland, the largest island in Orkney, Scotland. It is part of the UNESCO World Heritage Site known as the Heart of Neolithic Orkney. Most henges don't contain stone circles; Brodgar is a striking exception, ranking with Avebury (and to a lesser extent Stonehenge) among t...

The Sphinx Observatory is an astronomical observatory located above the Jungfraujoch in Switzerland. It is named after theSphinx, a rocky summit on which it is located. At 3,571 m (11,716 ft) above mean sea level, it is one of the highest observatories in the world. Accessible to the public, it is also the second highest observation deck in Switzerland. The mountain t...

Stonehenge is a prehistoric monument located in England and is one of the most famous sites in the world. Stonehenge is composed of earthworks surrounding a circular setting of large standing stones. It is at the centre of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds. It's located in the county of Wil...

The Very Large Array (VLA) is a radio astronomy observatory located on the Plains of San Agustin, between the towns of Magdalena and Datil, some fifty miles (80 km) west of Socorro, New Mexico, USA. The VLA stands at an elevation of 6970 ft (2124 m) above sea level. It is a component of the National Radio Astronomy Observatory (NRAO). U.S. Route 60 passes through...

Zorats Karer, also called Karahunjor Carahunge is an archaeological site near the city of Sisian in the Syunik province of Armenia. The site is located on a rocky promontory near Sisian. About 223 large stone tombs can be found in the area. It was explored by a team of archaeologists from the Institut für Vorderasiatische Archäologie, University of Munich wh...