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.
The most imposing surviving monument from the Hitler era is the famous mountaintop Eagle's Nest, given to the Fhrer by a grateful Nazi party in 1939. It is only open in summer, and is reachable by special bus and lift. Even if you are not interested in Berchtesgaden's spooky history, there is still plenty to do here.