This is a terrific conversion. I remember playing this 20 years ago! Thanks for resurrecting it. When playing this conversion, I noticed something very inexplicable. None of the wonders can be built when I discover the requisite advance. For example, I cannot build Cervantes' Work or De la Cosa's World Map. Do you know why this would be the case? Also, if I delete wonders from the Spanish cities using the cheat menu, I can no longer build them again.