Spain is located on the Iberian Peninsula in southwest Europe, bordered by Portugal, Gibraltar, Andorra and France. The euro is the currency and sales tax on meals is 7%. When dining out, tip waiters/waitresses 5-10% and taxi drivers around 5%. In Madrid, popular destinations include Retiro Park with its large lake and monument, the still under construction Sagrada Familia basilica that attracts over 2 million visitors annually, and the Arc de Triomf arch built for an 1888 exposition.