These frozen caves seem almost otherworldly as they daylight illuminates them. Matej Kriz’s shots reveal the beauty of the brilliant caves, but he’s also very aware of how deadly they can be. The photographer captured the amazing shots in the Vatnajokull National Park on the Breidamerkurjokull glacier tongue. Here: The ice caves, taken in the Vatnajokull National Park in Iceland, on November 11, 2017. (Photo by Matej Kriz/Caters News Agency)

Allyson Anne Lamb is a Brooklyn based fine artist primarily working in photography. Her work uses the body to explore the complexity of human emotions and the continuous invisible transformations we experience, revealing them as monstrosities or fantastical beings. Through the assembling of body parts, bright colors and fictional spaces that exist in Lamb's magical realm where sexual anxiety, female identity and altered sensorial perceptions are explored, Lamb invites us to participate in an altered state of consciousness. We step in to quaint fragmented realities where we are welcomed to engage in lucid dreaming populated by colorful mutations.

John Crawford was always fascinated of a birds eye view, looking straight down in a vertical perspective. In his series ‘Aerial Nudes’ he is photographing single naked bodies from a high elevation. Perfectly timed photographs show a distant nude body laying down in a series of interesting locations. On each selected shoot day Crawford would deliver his model Carina to the location in the helicopter, positioning her in the carefully arranged set-up, then flying to 600 feet and capturing the image, which would take no more than ten minutes.

A woman stands in front of graffiti depicting Venezuela's late former President Hugo Chavez, right, and revolutionary hero Simon Bolivar, in downtown Caracas, Venezuela, Wednesday, October 25, 2017. (Photo by Rodrigo Abd/AP Photo)

On Dale A. Browne’s first trip to Yellowstone, he “got the best shot” he’d ever taken after chasing this weasel for 30 minutes. The trip for the 58-year-old from Manassas, Va., was a gift from his wife and an opportunity to improve his photography skills with the help of guide and professional photographer Tom Murphy. (Murphy did not assist in the taking of this photo). (Photo by Dale A. Browne)

“Slow”. A calm cow in the messy streets of Jodhpur. Photo location: India. (Photo and caption by Matthias Troeger/National Geographic Photo Contest)