Ernst-Haeckel-Haus

Astrophysikalisches Institut und Universitäts-Sternwarte Jena (AIU Jena, Astrophysical Institute and University Observatory Jena, or simply Jena Observatory) is an astronomical observatory owned and operated by Friedrich Schiller University of Jena. It has two main locations in Jena, Germany and the neighbouring village of Großschwabhausen.

Jena Phyletisches Museum (or Jena Phyletic Museum) is a museum in the German town of Jena. It was established by the scientist Ernst Haeckel, as an institute dedicated to explaining evolution to the public. Exhibits include skeletons, stuffed animals, fossils and zoological artworks from Haeckel's Kunstformen der Natur, and cover topics including the principles of evolution, biodiversity and the links between different taxonomic groups. A temporary exhibit for 2019 will feature an aquarium of living jellyfish.

Jena Paradies station is the main railway station of the city of Jena in the German state of Thuringia. It is on the Saal Railway and is served by two long-distance services each day and regional trains to and from Naumburg, Saalfeld and Pößneck. It is named after and adjacent to Paradies ("paradise") Park, which is on the eastern shore of the Saale river.

The Volkshaus in Jena was one of the first free educational institutions in Germany to be set up on the North American model.

Bau 36 (also known as Ernst-Abbe-High-Rise or Zeiss Building 36) is a historic high-rise located on the former factory grounds of Carl Zeiss AG in the west of the city of Jena, Germany. Building 36 was erected between 1934 and 1935 by Georg Steinmetz and Hans Hertlein. The high-rise consists of 15 floors and reaches a height of 66 meters. It is characterized by a simple reinforced concrete skeleton structure; the only facade decoration consists of windows framed with masonry elements executed in contemporary designs. A renovation took place in 1994. Above the main entrance, the sculpture "Through Night to Light" by Joseph Wackerle is affixed.The building now houses the main administration of Jenoptik AG. On the occasion of its 20th company anniversary in 2011, they installed a show laser in the opposite Building 15, which has since been used to project laser displays onto the building during certain events.

The University of Jena, officially the Friedrich Schiller University Jena (German: Friedrich-Schiller-Universität Jena, abbreviated FSU, shortened form Uni Jena), is a public research university located in Jena, Thuringia, Germany. The university was established in 1558 and is counted among the ten oldest universities in Germany. It is affiliated with six Nobel Prize winners, most recently in 2000 when Jena graduate Herbert Kroemer won the Nobel Prize for physics. It was renamed after the poet Friedrich Schiller who was teaching as professor of philosophy when Jena attracted some of the most influential minds at the turn of the 19th century. With Karl Leonhard Reinhold, Johann Gottlieb Fichte, G. W. F. Hegel, F. W. J. Schelling and Friedrich Schlegel on its teaching staff, the university was at the centre of the emergence of German idealism and early Romanticism. As of 2014, the university has around 19,000 students enrolled and 375 professors. Its current president, Walter Rosenthal, has held the role since 2014.

Leutra is a small river in Thuringia, Germany. It flows into the Saale in the centre of Jena. Another small river also named Leutra flows into the Saale in the village Maua (part of Jena), 6 km to the south.

Jena West station is to the west of the centre of the city of Jena in the German state of Thuringia at the 22.59 km mark (from Weimar station) of the Weimar–Gera railway between Weimar, Jena-Göschwitz station and Gera Hauptbahnhof. This line is also called the Holzland Railway and it is part of the Mid-German Connection. The station is located in the suburb of Jena-Süd. The station is 171.64 metres above sea level and was opened on 29 June 1876 simultaneously with the railway. It is classified by Deutsche Bahn as a category 3 station.

The Deutsches Optisches Museum Jena is a science and technology museum displaying optical instruments from eight centuries. It gives a technical and cultural-historical survey of the development of optical instruments. The development of the city Jena to the centre of the optical industries since the mid-19th-century is integrated in the exhibition, connected with the lifeworks of Ernst Abbe, Carl Zeiss and Otto Schott. In cooperation with the art club Jena non-optical themes are offered in special exhibitions. Before the opening of the Zeiss Museum of Optics in Oberkochen in 2014, the Deutsches Optisches Museum Jena was the only museum of its kind in Germany.

The JenTower is a skyscraper in Jena, Germany.

Jena (German pronunciation: [ˈjeːna] ) is a city in Germany and the second largest city in Thuringia. Together with the nearby cities of Erfurt and Weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 inhabitants, while the city itself has a population of about 110,000. Jena is a centre of education and research; the university (now Friedrich Schiller University) was founded in 1558 and had 18,000 students in 2017 and the Ernst-Abbe-Fachhochschule Jena counts another 5,000 students. Furthermore, there are many institutes of the leading German research societies. Jena was first mentioned in 1182 and stayed a small town until the 19th century, when industry developed. For most of the 20th century, Jena was a world centre of the optical industry around companies such as Carl Zeiss, Schott and Jenoptik (since 1990). As one of only a few medium-sized cities in Germany, it has some high-rise buildings in the city centre, such as the JenTower. These also have their origin in the former Carl Zeiss factory. Between 1790 and 1850, Jena was a focal point of the German Vormärz as well as of the student liberal and unification movement and German Romanticism. Notable persons of this period in Jena were Friedrich Schiller, Alexander von Humboldt, Johann Gottlieb Fichte, Georg Wilhelm Friedrich Hegel, Novalis, and August Wilhelm Schlegel. Jena's economy is largely built upon its high-technology infrastructure and research. The precision optical instruments industry is its leading branch to date, although software engineering, other digital businesses, and biotechnology are of growing importance. Furthermore, Jena is also a service hub for its regional environs. Jena lies in a hilly landscape in the east of Thuringia, within the wide valley of the Saale river. Due to its rocky landscape, varied substrate and mixed forests, Jena is known in Germany for the wide variety of wild orchids which can be found within walking distance of the town. Local nature reserves are maintained by volunteers and NABU.

The Johannistor is the only remaining preserved city gate of the city of Jena, Thuringia, Germany. As part of the medieval city wall, it is connected to the Pulverturm (a tower, also preserved) via a reconstructed walkway. The outer gate remained in existence until the beginning of the nineteenth century, when it was demolished as a result of increasing traffic. Until the houses lining the south side of Johannisstrasse were demolished in 1968, the Johannistor remained the only western entrance to the old town of Jena.