Rhineland, Missouri
Rhineland is a village in Montgomery County, Missouri, United States. The population was 142 at the 2010 census. Its name came from German immigrants from the river Rhine area.
Mainz
Mainz (; ; , ) is the capital and largest city of Rhineland-Palatinate, Germany. The city is located on the Rhine river at its confluence with the Main river, opposite Wiesbaden on the border with Hesse. Mainz is an independent city with a population of 206,628 (2015) and forms part of the Frankfurt Rhine-Main Metropolitan Region.