One of the largest and best-excavated cities of the ancient world, Ephesus is located in Turkey’s western province Izmir. Once a cosmopolitan center of culture and commerce, Ephesus was added to UNESCO’s World Heritage List in 2015.
Read more about it here.
Located in Mexico, Chichen Itza’s most well-known site is the Pyramid of Kukulkan, which was built by the Maya. One of the most interesting properties of the structure is the light-and-shadow effect on the temple during the equinox, when the body of the feathered serpent god appears to be crawling down the side of the pyramid.