Topless activist Kaila J. walks through the rain following a “Free the Nipple” demonstration in Hampton Beach, New Hampshire August 23, 2015. (Photo by Brian Snyder/Reuters)

Protesters take part in “Artists Take Fight Against Police Murders” in New York's Times Square August 13, 2015. (Photo by Brendan McDermid/Reuters)

Miss Utah Krissia Beatty competes in the swimsuit competition during the first night of preliminaries of Miss America at Boardwalk Hall in Atlantic City, New Jersey, September 8, 2015. (Photo by Mark Makela/Reuters)

Indian artist, Ravi Kali (32), dressed as Hindu goddess Kali, participates in a religious procession for the Hindu festival, Ganesh Chaturthi in New Delhi on September 24, 2015. (Photo by Chandan Khanna/AFP Photo)

A model falls and gets help back to her feet during the fashion show for the Givenchy Spring 2016 collection at Fashion Week on, Friday, September 11, 2015, in New York. (Photo by Bebeto Matthews/AP Photo)

The stunning shots capture the moment a female bear and her two cubs enjoyed the last warm rays of the sun at the Arctic National Wildlife Refuge in Kaktovik, Alaska. The bears can be seen gazing at the vibrant sunset and appear to revel in the tranquil moment as they bask in the array of colors. (Photo by Sylvain Cordier/Caters News)

An artist has discovered a bizarre way to create his work – by coating the feet of insects with paint who then crawl across the canvas creating intricate pieces of art. (Photo by Caters News)

Artist Vik Muniz is known for his gigantic composite installations and sculptures created from thousands of individual objects. In this new collaboration with artist and MIT researcher Marcelo Coelho, Muniz takes the opposite approach and explores the microscopic with a new series of sandcastles etched onto individual grains of sand.