Low angle view of bamboo forest.

Group of aspen trees with blue sky in background.

Bare trees in forest covered in snow.

Low angle view of wooden boardwalk with plant growing on it at Bald Head Island, North Carolina.

Low angle view of Caucasian mid-adult woman making facial expression and gesturing to viewer.

Aerial view of several dirt roads intersecting in wooded area with bare trees in Pennsylvania.

Low angle portrait of multi-ethnic business group of men and women in huddle looking at viewer.

Rooftop view of tower building at Bald Head Island, North Carolina.

Shadow of helicopter above green marsh with abundant foliage.

Aerial view of tower and park on Bald Head Island, North Carolina.

Low angle view of palm tree.