Machu Picchu risks of landslides, earthquakes and injury due to decaying structures. Nude tourism is a recent trend, to the dismay of Peruvian officials. In several incidents, tourists were detained for posing for nude pictures or streaking across the site. Peru's Ministry of Culture denounced these acts for threatening Peru's cultural heritage. Cusco's Regional Director of Culture increased surveillance to end the practice. In January 2010, heavy rain caused flooding that buried or washed away roads and railways to Machu Picchu, trapping more than 2,000 locals and more than 2,000 tourists, later airlifted out to safety. Machu Picchu was temporarily closed, reopening
Intihuatana, Urubamba century, the Viceroy Francisco de Toledo and the clergy destroyed those "Intihuatana" which they could find. They did so as they believed that the Incas' religion was a blasphemy and the religious significance of the "Intihuatana" could be a political liability. The "Intihuatana" of Machu Picchu was found intact by Bingham in 1911, indicating that the Spanish conquerors had not found it. The "Intihuatana" of Machu Picchu was carved directly into the bedrock of the mountain's summit area. It is characterized by complex surfaces, planes and angles whose purpose at this time is unknown. Incomplete descriptions of its purpose by