Fodor's Expert Review Horca del Inca
Dating from the 14th century BC, this structure in the southeast part of the city was originally built by the pre-Inca Chiripa culture as an astronomical observatory. Four of the seven horizontal rock slabs were later destroyed by the Spanish who believed gold was hidden inside. The remains of the ruins show signs of vandalism, yet still warrant a visit for those wanting to blend culture and exercise. The slope is steep and rather challenging, but the view of Lake Titicaca will help alleviate the pain.