Wednesday, Aug 26, 2020, 5:59 pm

By:Tony Williams

#7 Vatican Museum - Italy

This staircase has been photographed more than any other staircase in the world. Located in the Vatican Museum, the spiral staircase was designed by Guiseppe Momo, with two separate spirals; one for going up and one for going down. Built in 1932, the designers had no idea that this construction closely resembled the double helix of the DNA strand.