Photo by @daisygilardini | I took advantage of the summer's midnight sun while cruising the waters of the Svalbard archipelago. I used a tripod and an eight-second exposure to emphasize the ship’s movement among the ice floes. Follow me @DaisyGilardini for more images and stories behind the scenes. #svalbard #ice #seaice #ship #Norway

Photo by Matthew Borowick @mborowick | A moonset isn’t exactly something new, but add in a glacier and you’ve got yourself something on par with a beautiful sunset. Here we have the moon setting over Breiðamerkurjökull around 9 a.m. in the Southern Region of Iceland. Since the daylight hours are so short, around four hours in total, the sun doesn’t rise until 11 a.m., blanketing the landscape in a cold, bluish color. Be sure to always hike glaciers with professionals, as they can be extremely dangerous if you don’t have the proper training. Please follow @mborowick for more images like these. #iceland #jokulsarlon #glacier #nature #explore

Photo by Muhammed Muheisen @mmuheisen | Children play with a ball near the Temple of Hercules, a historic site in the Amman Citadel in Jordan. For more photos and videos from different parts of the world, follow me @mmuheisen and @mmuheisenpublic. #muhammedmuheisen #Amman #citadel

Photo by Michael Yamashita @yamashitaphoto | The Pamir Mountains cast a perfect reflection in the crystal-clear waters of Karakuli Lake in the Xinjiang Uygur Autonomous Region, China. #PamirMountains #Karakul #KarakoramHighway

Photo by @max.lowe | My personal favorite city on the sea, San Francisco has a certain special feeling to it that’s hard to put a finger on. Looking back at the Golden Gate though, with pelicans making their way down the rugged coastline as the sun set on the Pacific horizon, I felt I was pretty close to the root of it. To see more from his travels, follow @max.lowe.

Photo by @stephen_matera | Windblown sand across Colorado’s Great Sand Dunes National Park and Preserve at sunset. The park also contains the Sangre de Cristo Mountains, with six peaks over 13,000 feet (3,900 meters). The sand dunes are up to 750 feet (200 meters) high and are constantly shifted by the blowing wind. Follow me @stephen_matera for more images like this from Colorado and around the world. #desert #sangredecristomountains #colorado

Photo by @babaktafreshi | The solar wind that reached the Earth’s magnetic field on this March evening generated impressive aurora displays. The colorful display appeared over an iconic landmark of Iceland, the waterfalls and mountain of Kirkjufell (Church Mountain) on the Snaefellsnes Peninsula. Learn about the best aurora destinations in both hemispheres in my natgeo.com article “7 Magical Places to View Auroras,” and follow me @babaktafreshi for more. #auroraborealis #northernlights #nightphotography #twanight

Photo by @taylorglenn | An atmospheric sunrise accentuates the profile of Sheep Mountain in Jackson Hole, Wyoming. We've been getting a steady flow of winter storms here in the valley, but we finally had a break in the weather, creating some beautiful light and photo opportunities. Follow @taylorglenn for more from #winter in #Wyoming and beyond.

Photo by Matthew Borowick @mborowick | The last stage of a glacier’s life is called calving, which is when chunks of ice fall off or dismantle from the glacier body itself. After this moment, these pieces transition into icebergs on their way into the sea. Breiðamerkurjökull, a glacier in southern Iceland, is an outlet glacier commonly referred to as a tongue of the much larger Vatnajökull. These pieces can range in size from as small as a few feet in length to well over hundreds of feet high. To have a better sense of scale, this picture was taken from around 1,200 feet (365 meters). Please follow @mborowick for more images like these. #iceland #jokulsarlon #glacier #nature #explore

Photo by @andrea_frazzetta | Visitors on a boat trip around Stromboli. Local boats circle the island, giving the opportunity to admire the volcano from different points of view and dive into the blue waters of the Mediterranean. Stromboli, one of the most active volcanoes in the world, rises majestically in the middle of the sea north of the Sicilian coast. To see more photos from my travels, follow me @andrea_frazzetta. #stromboli #volcano

Photo by @chiaragoia | A pinnacle of the Milan Cathedral (Duomo) overlooks the south side of Milan, Italy. To the right is the famous building Torre Velasca, built in the late 1950s and now a landmark of the city. Follow @chiaragoia for more images of Milan and other places. #milan #torrevelasca #duomo #pinnacles #italy

Photo by @daisygilardini | The Norwegian archipelago of Svalbard lies midway between Norway and the North Pole. It's one of the last real Arctic wildernesses, with breathtaking landscapes and wildlife including polar bears, foxes, reindeer, walruses, whales, and birds. During my recent trip there, a Brünnich's guillemot flew by just as I was enjoying the beautiful sunset reflected in the ripples caused by the ship. Follow me @DaisyGilardini for more images and stories behind the scenes. #Svalbard #Norway #birdsphotography #reflections