We are filming in Seville, which happens to maybe, probably be the burial place of at least most, if not all, of Christopher Columbus.
He was originally buried in the Americas, as was his wish, but when Spain ceded portions of Dominica to France, they didn't want to risk losing his remains to a foreign power, so they shipped him around from place to place until he finally settled here.
Today, the Dominican Republic claims he's actually still buried in a lighthouse over there, but science assures us that at least some of him is in that box — for whatever that's worth.