Devetashka Cave, Bulgaria

Mt. Rainier: over Reflection Lake, under Ursa Major

Arenal, Costa Rica

Gifford Pinchot National Forest, Washington

Blyznytsya Mountains, Ukraine

Brecon Beacons, Wales

Lenticular Clouds Near Estes Park, Colorado

Ball's Pyramid

China Beach, San Francisco

Unknown Place, Snowy Mountains

Lake Powell - Rainbow Bridge

Mountains & River

Glacier National Park