The Principe Felipe Science Museum of the City of Arts and Sciences is a world reference museum for interactive science, over 25 million visitors have visited such great museum thus it has become one of the most visited destinations in the country. It was inaugurated in 2000 aiming at stimulating curiosity and critical thinking; it surprises and amuses the audience through contents from the world of science, technology, and the environment.This 21st-century Science Museum was designed by Valencian architect Santiago Calatrava for letting know in an interactive, and entertaining way everything related to life, science, and technology. It is unique in the world due to geometry of the building, structure, the materials used and the constant presence of nature.