Photo of the Day: A man in a traditional boat in Mozambique

Photo by: Dale Morris (South Africa); Mozambique

Photo of the Day: The skyline of Porto, Portugal at sunset

Photo by: Luca Cortese (Milan, Italy); Porto, Portugal

Photo of the Day: Family in Karaj, Iran

Photo by: Seyed Saeed Barikani (Karaj, Iran); Karaj, Iran

Photo of the Day: Firefighters with the 106th Rescue Wing train to remove victims from a burning aircraft

Photo by: CS Muncy (New York, New York); Westhampton Beach, New York

Photo of the Day: Jackals in the Kalahari in South Africa

Photo by: Dale Morris (South Africa); Kalahari, South Africa

Photo of the Day: Salk Institute in California at sunset

Photo by: John Souza (Somerset, Massachusetts); La Jolla, California

Photo of the Day: Yosemite Falls

Photo by: Kyle Norman (Kingston, Ontario, Canada); Yosemite Valley, California

Photo of the Day: Dead fish in Salton Sea

Photo by: Ron Henderson (Dallas, Texas); Salton Sea, California

Photo of the Day: Two men and their camels silhouetted against a burnt sienna sky in India

Photo by Devendra Sharma (Ratlam, India); Khudi Desert, Rajasthan

Photo of the Day: Central Asian Turkic game “Buzkashi” meaning “goat grabbing”

Photo by: Mahdi Bemani (Dushanbe, Tajikistan); Hisar City in Tajikistan