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.
Construction was completed by September 1938, seven months before the building was officially presented to Hitler as a birthday gift on April 20, 1939 by the Nazi party. Widely known to Americans as The Eagle's Nest, the house is one of Germany's top tourist attractions and can be reached by a Tour bus from Munich.