Originally founded in 1725 as an inn, Sobrino de Bot�n is recognized by the Guinness Book of World Records as the oldest restaurant in the world. Sobrino de Bot�n serves up local Madrid and Castilian fare � including roast lamb, suckling pig, garlic soup, homemade pudding and chocolate cake � in a medieval-like setting with low ceilings, exposed brick and dark wooden furniture. The restaurant is known for its mentions in books by Benito P�rez Gald�s, Ram�n G�mez de la Serna, Ernest Hemingway and Graham Greene. Located beside the historic Plaza Mayor, Sobrino de Bot�n is open for lunch and dinner every day.