Temple of Kukulcan (Chichen Itza) was constructed between 8th and 12th century AD
Machu Picchu was constructed in 15 century AD
Proposal:
Chichen Itza available at Physics and renamed to Temple of Kukulcan. Mayan City of "Chichen Itza" remains available
Machu Picchu available on Astronomy. Incan City of "Machu" don't appear in game
Rationale: Identical names of Cities and Wonders are weird. The historical discrepancy is sometimes upsetting
Machu Picchu was constructed in 15 century AD
Proposal:
Chichen Itza available at Physics and renamed to Temple of Kukulcan. Mayan City of "Chichen Itza" remains available
Machu Picchu available on Astronomy. Incan City of "Machu" don't appear in game
Rationale: Identical names of Cities and Wonders are weird. The historical discrepancy is sometimes upsetting