The tall masts of the historic ships Balclutha and C.A. Thayer at the San Francisco Maritime National Historic Park.
A light beacon looms over adjacent trees at DFW International Airport, Texas.
An old tree stretches to the sky over Minters Chapel Cemetery on the grounds of DFW International Airport, Texas.
Trees grow atop a hill in the morning light at the University of North Texas, Denton.
The Klondike Highway leads towards a rugged mountain in Canada’s Yukon Territory.