The Mayan Ruins are the remnants of ancient cities built by the Maya civilization, which thrived in Mesoamerica from around 2000 BC to the arrival of Europeans in the 16th century. These ruins, found primarily in present-day Mexico, Guatemala, Belize, and Honduras, showcase impressive architecture, including pyramids, temples, and palaces, often adorned with intricate carvings and murals. Notable sites include Tikal, Chichen Itza, and Palenque, each reflecting the advanced knowledge of the Maya in astronomy, mathematics, and agriculture. Today, these ruins are important archaeological sites, attracting tourists and researchers interested in understanding the rich history and culture of the Maya civilization.