The Incan Empire is recognized for its rich culture that thrived in the Andes region of South America, particularly Peru, from the early 15th century until the Spanish conquest in the 16th century. The Incas developed advanced agricultural practices, sophisticated architecture, and a complex societal structure. They were known for their extensive road networks, impressive stone buildings like Machu Picchu, and agricultural terraces. Their religion was polytheistic, worshiping many gods, with Inti, the sun god, being one of the most important. The Incan legacy continues to influence modern Andean culture, languages, and traditions.