Koblenz is the fourth largest city in the country with almost 113.000 inhabitants after Mainz, Ludwigshafen am Rhein and Trier Rhineland-Palatinate. Koblenz celebrated its 1992th anniversary in 2000, making it one of the oldest cities in Germany. The original Latin name Confluentes (German the confluence) was derived from the location of the city at the mouth of the Mosel get on the Rhine on the so-called German corner from.
The closest major cities are Bonn (about 60 km down the Rhine) and Mainz (about 90 km up the Rhine). Koblenz is limited by the foothills of the Hunsrücks in the south and the slightly hilly landscape of the Maifeldes (foothills of the Eifel) in the West. The districts to the right of the Rhine in the east of the city area are in the foothills of the Westerwald and, with steep slopes in some cases, reach right up to the river. Parts of Koblenz belong to the World Heritage Site, because since 2002 the city with its cultural monuments has been the northern gateway to the Upper cultural landscape Middle Rhine Valley, the Niederberg castle has been on the UNESCO list since 2005 as part of the Upper German-Rhaetian Limes.