Pucará de Tilcara is an ancient archaeological site located in the Quebrada de Humahuaca region of Argentina. It was built by the Tilcara people around 1000 AD and served as a defensive fortress and settlement. The site features impressive stone walls, terraces, and structures that reflect the ingenuity of its builders. Today, Pucará de Tilcara is a popular tourist destination, offering visitors a glimpse into pre-Columbian history. The site is surrounded by stunning landscapes and provides educational resources about the Andean culture and the significance of the region's history.