A mass of humanity gaped in awe at the Shroud of Turin, which is revered by millions as the burial cloth of Jesus.
The shroud is back on public display for the first time since 2002.
Believers say the ghostly image on the cloth is the face of Jesus after he was crucified.
"The Shroud of Turin is the most studied artifact in all of human history," said Father Jonathan Morris, a theologian. "And even today with all our technology, scientists can't tell us how this image came to appear on this cloth."
Interest in the shroud has never been greater. Recently, a three-dimensional image of the shroud was made using advanced technology for the History Channel documentary, The Real Face of Jesus.
At Turin Cathedral over the weekend, a crowd of believers gathered to see the shroud and pray.
The 14-foot-long, four-foot-wide piece of linen was hung in a frame.
Carbon testing done in the 1980s concluded the shroud was "not authentic" since it was only "700 years old" and not from the time of Jesus.
A headline read, "The Legend was in Tatters."
But the accuracy of those tests is now in dispute because the shroud has been contaminated by pollution and human contact.
"Was this the burial cloth of Jesus? We don't have evidence yet, but there certainly are a lot of pieces that point in that direction," said Morris.
Now, with the Shroud of Turin back on public display, the intriguing questions about it are being asked all over again.