<p>Looking out of the entrance to Conturines Cave over the Dolomites in Italy. This cave is famous for the collection of bones and skulls from cave bears, which are now an extinct species, that are found inside.</p>

Looking out of the entrance to Conturines Cave over the Dolomites in Italy. This cave is famous for the collection of bones and skulls from cave bears, which are now an extinct species, that are found inside.

Photograph by Robbie Shone

Our Favorite Instagram Photos: Walking on Air and Inside a Viking Festival

We selected our favorite pictures from the past week on @natgeo Instagram. See more of our photographers' photos on Instagram.

This week on the @natgeo Instagram, our photographers shared photos from all corners of the Earth and beyond—from land, air, and sea. A group of Danes reconnected with the traditions of their Viking ancestors, while a daring highliner walked above the clouds of Rio de Janeiro, Brazil, and a harp seal pup made its first swim in Canada's Gulf of St. Lawrence. Keep following the account from even more updates from all around the world.

Each week our photo editors select their favorite photos that were posted on the @natgeo Instagram account. Follow this week's photographers: @shonephoto, @ladzinski, @renan_ozturk, @mattiasklumofficial, @petekmuller, @dguttenfelder, @brianskerry, and @jimmy_chin.

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