Young boy sitting on log in water in summer looking thoughtful
High angle shot of townscape against sky
Asian female hiker smiling while standing on cliff against sea
Illuminated cityscape at night
Scenic view of snowcapped mountains against sky
Various modern telescopes including magic or major atmospheric gamma imaging cherenkov telescope located on hill slope at astronomical observatory on island of la palma in spain
Incancecent lava flow on etna volcano in sicily in valle del bove with smoke and lava flow canal
Masai men standing in front of a traditional door in old town
Scenic view of road amidst mountains against sky
High angle view of sea and city
Bridge over river against sky
Legs on faceless traveler in brown boots and blue jeans standing on dirty sandy road with mountain and sky on blurred background in bardenas reales, navarre, spain
Side view of thoughtful male traveler in warm clothes standing on background of himalayas mountain range on sunny day in nepal
High angle view of city
Panoramic view of landscape and mountains against sky
Marian lake new zealand
Male traveler with trekking sticks standing near lake in woods
Empty camping chair on the pier near the river, summer sunny day, selective focus
Cropped unrecognizable man looking through an old binoculars the fauna of a lagoon in spain
Full body of positive young female hiker sitting on haunches while setting up tent during weekend in woods
Ama dablam nepal landscape
Back view of unrecognizable carefree female explorer standing in highlands and enjoying freedom
Traveling female hipster sitting in driver seat in parked truck in highlands
Road leading towards mountains against sky
Aerial view of city lit up at night
Aerial view of a valley
Surfin' on glacier ice at the diamond beach
Cropped male cyclist fixing mechanism of bicycle against hiker setting in forest
Beautiful view trom the top mountain peak in summer italy alps
Young male speleologist with flaming torch standing in dark narrow rocky cave while exploring subterranean environment
A man standing on glacier ice at the diamond beach in iceland
Side view of young male speleologist with flaming torch standing in dark narrow rocky cave while exploring subterranean environment
Natural landscape with green mountain peaks in summer
Aerial view of landscape against sky
Man looking up amazed in the forest
Rear view of woman walking on road against blue sky
Explorers holding map and binoculars while standing in forest
Man traveler with trekking poles walking up old stone stairs in jungles
Scenic view of sea against sky during sunset
Long exposure of the river at the ice lagoon at jökulsárlón, in the south of iceland
Young ethnic female tourist in warm clothing and hat looking away while crossing simple long narrow suspension wooden bridge decorated with bright multi colored pieces of fabric in daylight
High angle view of cityscape against sky
Panorama of morning lake
Low angle of male hiker with backpack navigating with paper map while standing in woods and looking away
Incandescent lava flow on the etna volcano in sicily in valle del bove with smoke and flow canal
Maasai man in traditional clothes standing in front of green leaves
Back view of cropped anonymous male speleologist with flaming torch standing in dark narrow rocky cave while exploring subterranean environment
Two masai men in traditional clothes standing in front of sea
Acorns in hand
High angle view of boat in sea
Scenic view of mountains against sky during winter
Side view of curious little girl in warm clothes observing environment while spending time alone on grassy meadow against mountains
Climber traversing a snow ridge whilst mountaineering in new zealand
Smiling pregnant woman outside in nature wearing a yellow dress
Scenic view of sailboat and seagulls in the sea
Rear view of explorers holding map while standing in forest
Young male speleologist with bright flashlight in hand exploring dark subterranean cave during extremal adventure
Back view of unrecognizable male traveler with trekking poles walking up old stone stairs in jungles
Back view of young male speleologist with flaming torch standing in dark narrow rocky cave while exploring subterranean environment
Young ethnic female tourist in warm clothing and hat looking at camera while crossing simple long narrow suspension wooden bridge decorated with bright multi colored pieces of fabric in daylight
Woman holding earthworm in a garden.
Close-up of hand holding acorn
A woman crossing the street where tram is passing by, a typical scene in hong kong island.
Scenic view of sea against sky
Side view of male hiker and woman kindling fire with twigs near tent and bicycle during adventure in woods
Side view full body of male hiker climbing up on ladder to camping tent on roof of car during hiking journey with dog in vast valley
Scenic view of waterfall against sky
Low angle of anonymous explorer standing with illuminated flashlight near rock in highlands against night starry sky
Rear view of woman with hands in back pockets standing by lake against clear sky
Two masai men in traditional clothes standing under big mkungu tree
Unrecognizable cosmonaut in spacesuit standing in snowy valley in winter on background of huge radar antennas in svalbard
Largest optical reflecting telescope gran telescopio canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of la palma in spain
Maasai man on the beach in front of sea
Close-up of man against blue wall
Female hiker in warm clothes standing in nature and orientating with paper map during trekking
Scenic view of lake by mountains against sky
View of rock formation
Side view of astronaut in spacesuit and helmet walking by futuristic building and admiring sea against blue sky on alien planet
Remote view of unrecognizable traveler standing in ice cave in winter during vacation in iceland
Man standing at the powerful seljalandsfoss waterfall
Maasai warrior with a traditional knife attached to a belt
Low section of person on rock in mountains.
Silhouette of anonymous explorer with flashlight standing between rocky cliffs and admiring dark starry sky in picos de europa national park person
Unrecognizable explorer standing with glowing flashlight in foggy woods under dark sunset sky
Back view of boy walking on hiking trail among green plants in summer
High angle view of city lit up at night
High angle view of townscape and mountains
High angle view of illuminated buildings in city