Scotland, 1981
Scotland, 1981
Swedish Lapland, 1985
Greenland, 1988
Greenland, 1988
Greenland, 1988
Greenland, 1988
Tasmania, 1990
Tasmania, 1990
Tasmania, 1990
Tasmania, 1990
New Guinea, 1991
Papua New Guinea, 1991
Papua New Guinea, 1991
Papua New Guinea, 1991
Lebanon, 1995
Lebanon, 1995
Lebanon, 1995
Eastern Siberia, 1995 and 1996
Eastern Siberia, 1995 and 1996
Eastern Siberia, 1995 and 1996
Eastern Siberia, 1995 and 1996
Moldavia, 1998
Moldavia, 1998
Moldavia, 1998
Bethany, Connecticut, 2000
Bethany, Connecticut, 2000
New Mexico, 2000
New Mexico, 2000
China, 2004 and 2005
China, 2004 and 2005
Novgorod, Russia, 2006
Novgorod, Russia, 2006
Cappadocia, Turkey, 2007
Spain, 2012
Pyrenees, 2013