An Aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group.
Berchtesgaden-a town in Bavaria The town of Berchtesgaden is located near Hitler's Eagle's Nest (Kehlsteinhaus) and can be easily reached by train; there are several hotels and it is an inexpensive place for tourists to stay overnight.
H itler's Eagle's Nest was designed and built for Adolf Hilter's 50th Birthday by his personal secretary and Head of the Nazi Party Chancellery Martin Bormann. The monument is called Kehlsteinhaus in German because of it was originally intended to be a Teahouse for the head of the Third Reich.