Sometimes mathematical activities take place in extremely nice surroundings like Schwarzwald. Here are pictures taking during different conferences and workshops.

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Symmetric functions: surveys of developments and perspectives, Cambridge, July 2001.
Classical invariant theory, Kingston, Canada, April 2002.
Oberwolfach Geometry and combinatorics of representations of quivers, June 2003. Locally symmetric spaces, October 2003. Algebraische Gruppen, March 2004.
Geometry and representations, Luminy, April 2005.
Lie groups, algebraic groups and transformation groups A conference in honour of Ernest B. Vinberg's 70th birthday Bielefeld 2007
The Interplay of Algebra and Geometry A conference in honour of Corrado De Concini Cortona, Il pazazzone, June 14-20 2009