Son Doong Cave, Vietnam. The largest cave in the world.

Frozen Lake Baikal, Siberia

Alpergensee, Switzerland

Red Sandstone, Snow Canyon UT

Path at a Irish Campsite

An ancient tree on the rim of Oregon's Crater Lake at twilight

Another view of Crater Lake OR: Featuring the Castle

Tulabi Falls, Nopiming Provincial Park, Manitoba

Boulder, CO

Beautiful Waterfall in Iceland

Jaghori, Afghanistan

Torres del Paine National Park, Patagonia, Chile

Fall colors at a stream near Milford, New Hampshire.