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.
A Kehlsteinhaus, nicknamed Eagle's Nest by a French diplomat, was built in 1937â38 (with remarkably lavish government funds spent as a national gift for his 50th birthday) on the mountaintop above the Berghof, but Hitler rarely went there.