Volcano eruption as seen from space.

Aldeyjarfoss in Skjálfandafljót, Iceland

My backyard, New Zealand

Bourke's Luck Potholes, Blyde River Canyon, South Africa

Morning sun spilling into Forney Creek, at Great Smoky Mountains National Park, Tennessee

Multnomah Falls

Mt. Rainier: over Reflection Lake, under Ursa Major

Whitehaven Beach, Australia

Piercy Island, Bay of Islands, New Zealand

Brandy Creek Cascades, Whiskeytown, California

Santorini, Greece

Los Roques, Venezuela

Varmland, Sweden