A resident walks on street in the "Casco Antiguo" in Panama City, capital of Panama, Oct. 20, 2013. The "Casco Antiguo" or "Casco Viejo" is the historic district of Panama City, a zone rich in Spanish architectures from 17th century. The area was built following the destruction of the original Panama city in 1671 due to a pirate's attack. In 1997, the United Nations Education, Science and Culture Organization (UNESCO) declared it as a World Heritage. (Xinhua/Mauricio Valenzuela)