Sacred Destinations Destinations Italy Siena Siena Crypt Siena Crypt Photos 16791 × share full URL share short URL embed link code photo 1 of 16 Previous | Next Crypt Exterior Exterior of the "crypt" of Siena Cathedral, built and frescoed in the 13th century. It was abandoned in the early 14th century and not rediscovered until 1999. Credit: Holly Hayes