Personal trainer, Denise Austin, and Katie Austin arrive at the ESPY Awards at the Microsoft Theater on Wednesday, July 13, 2016, in Los Angeles. (Photo by Jordan Strauss/Invision/AP Photo)

Vietnam’s Son Doong cave, the largest in the world, could hold a 40-story skyscraper inside. The pristine ecosystem has its own river and jungle. Despite its size, Son Doong wasn’t discovered until 1991. It was lost again for nearly two decades and was fully explored for the first time in 2009. (Photo by Jason Speth/HuffPost)

Sunset on Monday evening, June 17, 2024 at Mudeford in Dorset, UK with a swan stretching it's wings. (Photo by Cenk Albayrak-Touye/Picture Exclusive)

People take pictures of the sunset in Berlin October 27, 2014. (Photo by Hannibal Hanschke/Reuters)

Groundsman Darren Cordingley on his way out of the maze on July 11, 2024. Gardeners have had their work cut out after spending a whopping 520 hours trimming one of the world's biggest hedge mazes. It has taken a team of 13 working eight hours a day for five days to tackle the enormous maze at the Longleat estate in Wiltshire, UK. (Photo by Max Willcock/Bournemouth News)

The Aurora Borealis (Northern Lights) is seen in the sky in Ivalo of Lapland, Finland on September 27, 2019. (Photo by Alexander Kuznetsov/Reuters)

Girls accompany grooms as they sit separate from the brides during a mass wedding for 150 couples in Beit Lahiya town in the northern Gaza Strip July 20, 2015. The wedding was funded by al-Basheer Society for Relief and Development. (Photo by Suhaib Salem/Reuters)

These jaw-some images show what its like to look inside the mouth of a tiger shark. Captured in amazing detail, the unique pictures show the alien-like anatomy of the shark and reveal rows upon rows of razor sharp teeth and white coloured gills. The incredible photographs were taken when a curious shark began to inspect the camera of British born photographer, Adam Hanlon, 46. After sensing electronic impulses omitted by Adams camera, the inquisitive creature began to gently mouth at the cameras housing allowing him capture the unusual perspective. (Photo by Adam Hanlon/Caters News)