Lausitz (Germany,2001)	Tenerife (Spain, 1997)
Aeolian Islands (Italy, 1988)	Tuscany (Italy,1989)
Massif Central (France, 1996)	Haiphong (Vietnam, 1995)
Turkish/Georgian border,1993	Hanoi (Vietnam, 1995)
Dolomites (Italy, 1996)	Santa Cruz de Tenerife (Spain, 1997)
Chartreuse (France, 1992)	Switzerland, 1990
Switzerland, 1989