Types
PlCan you please describe an observatory through a telescope?
Telescope
Roper Mountain Science Center Belogradchik Observatory Braeside Observatory Piszkéstető Station Cincinnati Observatory
Roper_Mountain_Science_Center-Charles_E._Daniel_Observatory Belogradchik_Observatory-Equipment Braeside_Observatory-Abstract Piszkéstető_Station-Abstract Cincinnati_Observatory-Abstract
The principal telescope at the observatory is a refractor. the objective lens was made by Alvan Clark and Sons. The telescope, which was finished in 1882, was installed at the Halsted Observatory of Princeton University. The telescope was rebuilt in 1933 by J. W. Fecker Company. The telescope was transferred to the US Naval Observatory in 1964. In 1968, it was offered to the Greenville County School District. The telescope was renovated and an observatory was built through a donation from the Charles E. Daniel Family Foundation. It is the eighth largest refractor telescope in the United States. 
The observatory started out with a single 15 cm Cassegrain telescope, then added on an 60 cm Cassegrain telescope in 1965. In 1994 another telescope was added, a 14 inch Schmidt-Cassegrain model. 
Braeside Observatory is a privately owned astronomical observatory previously owned and operated by Arizona State University. It is located five miles west of Flagstaff, Arizona (USA), near the U.S. Naval observatory. The observatory is made up of two buildings, the telescope building and the control building. The telescope building is where the observatory's 16" Cassegrain Reflector telescope is housed. The telescope is controlled from either the control building or from the university through computer controls. 
The Piszkéstető Station or Piszkéstető Mountain Station is an observatory in Mátra Mountains, Hungary, first built in 1958. The station is a station of Konkoly Observatory, Budapest. It has IAU codes 461 (Szeged University) and 561 (Konkoly Observatory). The observatory features four telescopes, a 1 m Ritchey–Chrétien telescope since 1974, a 60/90/180 cm Schmidt telescope since 1962 and an 50 cm Cassegrain telescope since 1966 and a 40 cm Ritchey–Chrétien telescope since 2010. 
The Cincinnati Observatory, located in Cincinnati, Ohio (USA) on top of Mt. Lookout. It consists of two observatory buildings housing an 11 inch (28 cm) and 16 inch (41 cm) aperture refracting telescope. It is the oldest professional observatory in the United States. It was a key facility for astronomical research and education at the University of Cincinnati and is still owned by the university. The observatory currently operates as a 19th-century observatory. There are regular viewings through both historical telescopes as well as tours and additional programs. The observatory also has an extensive outreach program, providing astronomical education for the Ohio/Kentucky/Indiana region. The Cincinnati Observatory is a contributing property to the Observatory Historic District. 