Peña de Bernal is a monolithic rock formation located in the state of Querétaro, Mexico. It rises approximately 10,000 feet above sea level and is one of the largest monoliths in the world. The site is a popular destination for hikers and climbers, offering stunning views of the surrounding landscape. The rock is believed to have formed around 10 million years ago through volcanic activity. It holds cultural significance for the local Otomi and Mazahua communities, who consider it a sacred site. Today, Peña de Bernal is recognized as a national monument and attracts many visitors each year.