But for anyone who wants to ask the questions, Dia: Beacon, the Dia Art Foundation's sprawling upstate outpost, has been an essential Ryman
pilgrimage site since it opened in 2003, with rooms full of natural light dedicated to his mostly white, mostly square minimalist works.
Believed to be an imprint of Christ's face after being crucified, the shroud has been displayed in Turin
since 1578 - and the city became a popular
pilgrimage site from that time.