Tourists watching Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

travel destination travel destinations travel photography colour colour image color color image vertical vertical image outdoors outside day background people incidental people people in the background old faithful geyser yellowstone national park unesco unesco world heritage site world heritage site wyoming usa us united states united states of america north america american north american geyser geology geological geothermal national park landmark landmarks famous well known well known tourist destination tourist tourists holiday maker holiday makers on holiday crowd watching non urban scene scenics scenic scene scenes scenery water steam heat spray power mineral earth nature natural