Which Central American country is recognized for its historical Mayan sites?

Guatemala is widely recognized for its significant historical Mayan sites, making it the correct answer. This country is home to several ancient Mayan cities, such as Tikal, which is one of the largest archaeological sites of the pre-Columbian Mayan civilization, renowned for its impressive temples and palaces. The rich cultural heritage is further reflected in various other sites throughout Guatemala, like Quiriguá and Yaxhá. The extensive preservation of these sites provides valuable insights into Mayan civilization, including their advanced understanding of astronomy, architecture, and agriculture.

The other countries in this context have different historical and cultural significances. Costa Rica, while known for its biodiversity and eco-tourism, does not have as many prominent Mayan archaeological sites. Nicaragua has its own unique historical heritage but is more associated with its colonial architecture and Spanish influence rather than ancient Mayan ruins. El Salvador does have some Mayan sites, such as Tazumal and San Andrés, but they are not as renowned or expansive as those found in Guatemala. Thus, Guatemala's rich tapestry of Mayan history and well-preserved sites solidly establishes its reputation.