Construction workers on scaffolding (© Bits and Splits/Shutterstock)

Aerial view of Manhattan, New York City (© Wojtek Zagorski/Getty Images)

Allen’s hummingbird, Santa Cruz, California (© mallardg500/Getty Images)

Turkey tail mushroom, Brevard, North Carolina (© Bill Gozansky/Alamy)

Saguaro cacti, Ironwood National Monument, Arizona (© Jack Dykinga/Minden Pictures)

Whale shark, Ningaloo Reef, Western Australia (© Jason Edwards/Getty Images)

American bison in Grand Teton National Park, Wyoming (© Enrique Aguirre Aves/Getty Images)

Fort Lovrijenac, West Harbor, Dubrovnik, Croatia (© Benny Marty/Shutterstock)

Seongsan Ilchulbong, a tuff cone on Jeju Island, South Korea (© Quynh Anh Nguyen/Getty Images)

Berlin Cathedral and Museum Island, Berlin, Germany (© Rudy Balasko/Shutterstock)