Cusco dates back to 1200 AD and is linked to the first Inca ruler Manco Capac. Its main period of expansion occurred in the 15th century under the rule of the Inca Pachacuti, who was responsible for the growth of the Inca Empire as far south as Chile and Argentina, and north to Ecuador and Columbia. The empire came to an abrupt end on the arrival of the Spanish Conquistadors, One of the most noticeable things about the architecture of Cusco are the Inca walls constructed of enormous granite blocks. The Inca architecture has survived numerous earthquakes The Sacred Valley of the Incas or Urubamba Valley was formed by the Urubamba River and stretches from the old Inca capital of Cusco to below the sacred city of Machu Picchu. The Basilica Cathedral of Lima was conceived, designed and built by the Spanish Conquistador Francisco Pizarro (1529-41). Pizarro founded Lima after subduing the Inca and establishing it as the capital of Peru. Construction began in 1535 and was completed in 1538, although this was a small adobe building. In 1541 the church was designated a cathedral by Pope Paul III Huaca Pucllana is located amongst the residential buildings of the Miraflores district of Lima and dates back to 500 AD Huaca Pucllana was an important religious centre of the Lima culture and was dedicated to a female deity linked to the sea The archaeological site at El Brujo (which means witch doctor) derived its name from the fact that the site was used to perform Shamanic rituals. It is situated on the coast of Peru near Trujillo and consists of two pyramids, Huaca El Brujo (or Huaca Cortada) and Huaca Cao Viejo (or Huaca Blanca), The site is situated on a natural terrace 17 meters above sea The archaeological site of Chan Chan is located near the Pacific coast, close to the city of Trujillo in Northern Peru The city’s structure shows the social and political status of its occupants, with the nobility and elite living in the centre, whilst the common people would have had their homes and work place outside. Located near the city of Trujillo at the mouth of the Moche River in Northern Peru, the Huaca de la Luna (Temple of the Moon) together with the Huaca del Sol (Temple of the Sun) formed part of the ancient city of Huacas de Moche which was the capital city of the Moche people. Machu Picchu is considered the most important building of Peru, and has been chosen as one of the wonders of the ancient world. We must consider the conservation of our buildings because they generate economic development through tourism.