View from Castillo de San Felipe de Barajas, Cartagena, Bolivar Department, Colombia, South America

Tourist taking selfie stick picture with smart phone, enjoying view over Victoria Harbour from viewing platform on top of Peak Tower, Victoria Peak, Hong Kong, China, Asia

Tourist taking selfie stick picture with smart phone, enjoying view over Victoria Harbour from viewing platform on top of Peak Tower, Victoria Peak, Hong Kong, China, Asia

Photographer Skip Brown on his foiling kiteboard in the Atlantic Ocean off Nags Head, North Carolina, United States of America, North America

Tourist taking selfie stick picture photo with smart phone enjoying view over Victoria Harbour from viewing platform on top of Peak Tower, Victoria Peak, Hong Kong, China, Asia

Photographer Skip Brown on a stand up paddle board at the mouth of Havasu Creek in the Grand Canyon, Arizona, United States of America, North America

Skip Brown surfs his whitewater kayak on a glassy standing wave on the Colorado River through the Grand Canyon, Arizona, United States of America, North America

Photographer Skip Brown stand up paddle surfs challenging whitewater below Great Falls of the Potomac River, border of Maryland and Virginia, United States of America, North America

Skip Brown stand up paddle surfs a whitewater wave on the Potomac River as an afternoon thunderstorm moves in, Virginia, United States of America, North America

Photographer Skip Brown rides his hydrofoil behind a small boat on Sebago Lake, Maine, United States of America, North America

Skip Brown surfs his whitewater kayak on a glassy standing wave on the Colorado River through the Grand Canyon, Arizona, United States of America, North America

Photographer Skip Brown stand up paddle surfs challenging whitewater below Great Falls of the Potomac River, border of Virginia and Maryland, United States of America, North America

Photographer Skip Brown on his foiling kiteboard on the Pamlico Sound, Nags Head, North Carolina, United States of America, North America

Photographer Skip Brown on his foiling kiteboard on the Pamlico Sound, Nags Head, North Carolina, United States of America, North America

Skip Brown surfs his stand up paddleboard in fast moving whitewater on the Potomac River near Great Falls, Virginia, United States of America, North America

Photographer Skip Brown stand up paddle surfs in winter challenging whitewater below Great Falls of the Potomac River, border of Virginia and Maryland, United States of America, North America

Family taking a selfie in Bagh-e Narajestan (Citrus Garden), Shiraz, Iran, Middle East

Tourists queue to watch the changeing of the guard at Buckingham Palace, London, UK.

Tourists queue to watch the changeing of the guard at Buckingham Palace, London, UK.

Rear view of group of tourists on Sugarloaf Mountain, Rio de Janeiro, Brazil

Man swimming in Lagoa Azul (Blue Lagoon) in Ilha Grande, Rio de Janeiro, Brazil

A basket of leaves are organized in a traditional manner near Inle Lake, Myanmar

Two girlfriends sitting in a grass field posing for a self-portrait with a selfie stick and smart phone; Edmonton, Alberta, Canada

Tourists view Humpback whale (Megaptera novaeangliae) from whale watching boat, Lahaina, Maui, Hawaii, United States of America

Three people, two men and a young woman in skiing gear posing for a selfie, one holding a selfie stick.

Three people, two men and a young woman in skiing gear posing for a selfie, one holding a selfie stick.