A slug climbs small mountains at the peak of Mount Greylock (3,489 ft).
Ogni volta che il lupo
Earth
Galapagos - Trauminsel im Pazifik
Wild Animals of Virginia
Deep Blue
Des enfants et des arbres
In the Shadow of Karakorum
Adventures
Watershed: Exploring a New Water Ethic for the New West
Das Plattbodenschiff
Arabia: Sand, Sea & Sky
The Himalayas