Green and orange moss on streamside rock, Major Creek. Columbia River Gorge National Scenic Area, Washington, USA.

Wildflowers covering hills, Carrizo Plain National Monument, California, USA.

Wildflowers covering hills, Carrizo Plain National Monument, California, USA.

Oak, Common oak, Quercus robur, Autumn leaves covering fallen acorns.

Rampant climber covering a wall and a street light in Paris, France.