Trujillo is a city in coastal northwestern Peru and the capital of La Libertad Region. It is the third most populous city and center of the second most populous metropolitan area of Peru. It is located on the banks of the Moche River, near its mouth at the Pacific Ocean, in the Moche Valley. This was a site of the great prehistoric Moche and Chimu cultures before the Inca conquest and subsequent expansion. The Independence of Trujillo from Spain was proclaimed in the Historic Centre of Trujillo on December 29, 1820, and the city was honored in 1822 by the Congress of the Republic of Peru with the title "Meritorious City and Faithful to the Fatherland", for its role in the fight for Peruvian independence. Trujillo is the birthplace of Peru's judiciary, and it was twice designated as the capital of the country. It was the scene of the Revolution of Trujillo in 1932. Trujillo is considered the "cradle of liberty and cradle of the judiciary in Peru". Trujillo is also known as the "City of Everlasting Spring", is considered the "Capital of the Marinera", a traditional dance in Peru, "Cradle of the Peruvian Paso horse", as well as the "Capital of Culture of Peru". It has sponsored numerous national and international cultural events, and has a lively arts community. Current festivals include the "National Marinera Festival", the Trujillo Spring Festival and the International Book Festival, which is one of the most important cultural events in the country.
Trujillo is close to two major archeological sites of pre-Columbian monuments: Chan Chan, the largest adobe city in the ancient world, designated a World Heritage Site by UNESCO in 1986; and the temples of the Sun and Moon (the largest adobe pyramid in Peru). The city center contains many examples of colonial and religious architecture, often incorporating distinctive wrought ironwork. It includes residential areas, a central business district, and industrial supply distribution to the various districts. The Roman Catholic Archdiocese of Trujillo has its seat here. Roman Catholicism is the predominant religion and 10 colonial churches are located within the old city wall, now encircled by Avenida España; additional churches in the towns of Huamán, Huanchaco and Moche are located within 15 kilometres (9.3 miles) of Trujillo's centre. Since 2011, the city has been developing the pilot project Trujillo: Sustainable City, as part of the platform "Emerging and Sustainable Cities of the Inter-American Development Bank", in cooperation with the IDB. In 2012 Trujillo was selected by IBM to participate in a "Smarter Cities Challenge" project intended to improve public safety and transportation through technology.