Reutlingen is a city in Baden-Württemberg, Germany. It is the capital of the same-named district Reutlingen. Reutlingen has a university of applied sciences, which was founded in 1855, originally as a weaver's school.
The first settlements in the area are believed to date from the 4th/5th century . Some time around 1030, Count Egino started to build a castle on top of the Achalm, one of the largest mountains in Reutlingen district (about 706 m). One of the towers of this castle stands until today and is open for visitors.