There are four museums that belong to the Royal Museums of Greenwich. The Queen’s House, The National Maritime Museum, the Royal Observatory and the Cutty Sark. Exhibitions found at the National Museum are vast collections of maritime pieces; The Queen’s House was once a Royal house with astonishing architectural design by Inigo Jones; the Royal Observatory is famous because of the Prime Meridian Line; the Cutty Sark is a Victorian tea clipper ship built back in 1869.