The Dupont Circle park in Washington DC is a busy, crowded place.Popular restaurants and businesses around the circle attract many city residents and visitors.But few people know about the old streetcar station below the street. Braulio Agnese is the Managing Director of an organization called Dupont Underground.The group wants to change the old station into a place for the arts."We see everything from site-specific art work, that fills the space in different ways, light and sound or installations. Or it can be used like a traditional gallery.But also as a curved space, it offers a chance for new kinds of performance.DC has quite a few experimental theater groups that would like to work in an unusual space and do different kinds of production.'The system of tunnels was built in the late 1940s. But the streetcars only ran for a short time.They stopped running in the 1960s. Mr. Agnese says the station could become a symbol of how quickly Washington is changing."Changes in the last five or ten years have been tremendous. The restaurant scene is changing, new development, new opportunities.We think there is an opportunity to create something here that helps the city to move forward."