Spiral staircase, Vatican City

Spirals are one of the most fascinating occurrences in nature and have inspired artists and architects through time immemorial. Built in 1932, this is the new Bramante Staircase in the Vatican Museum, a beautiful double helix staircase inspired by the original staircase built by Donato Bramante in 1505. Donato’s other striking contribution to the field of architecture is the design of the grand St.Peter’s Basilica in Vatican City.

In response to this week’s Weekly Photo Challenge prompt : Rounded

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