Solar Impulse 2 flying over the pyramids in Giza, Egypt

Källö-Knippla, an island in the archipelago of Gothenburg, Sweden

Freshwater plants and tetra fish, Aquário Natural, Rio Baía Bonita, Mato Grosso do Sul, Brazil

The Great White Roller Coaster at Wildwood, New Jersey

Chittorgarh Fort, India

Panther chameleon in Amber Mountain National Park, Madagascar

Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota

Herd of African elephants in Amboseli National Park, Kenya

Mount Tsubakuro near Azumino, Nagano, Japan

Joshua trees in Joshua Tree National Park, California

Cueva de las Manos (Cave of the Hands) in Santa Cruz, Argentina

Aerial view of the island Pantaleu near Sant Elm, Mallorca, Spain