Immerse yourself in lisbons rich history and culture on this 15 hour walking tour of the belm district check off showstopper sights like the unesco listed belm tower torre de belm and discover where the pastel de nata egg tart pastry an internationally enjoyed staple of portuguese cuisine was invented youll also visit the monument to the discoveries and receive a combined skip the line ticket to the belm tower and the magnificent monastery of st jerome mosteiro dos jeronimos