ROME, ITALY - CIRCA SEPTEMBER 2020: the famous spiral staircase with double helix. Vatican Museum, made by Giuseppe Momo in 1932

deserted spiral building stair spiral staircase architecture interior famous indoor architect stairway september giuseppe momo no one structure step interior space renowned interior entrance spirally no people construction famed inside staircase helical nobody steps spiral shaped uninhabited empty spirals buildings stairs spiral staircases interiors indoors architects stairways septembers interior views constructions staircases indoor photo indoor shot indoor shots interior view interior photo interior photos interior photograph interior shot interior shots inner view