Curious Historic Villages of Portugal

Who was born in Belmonte & became a famous Portuguese navigator? What is the ‘Eternal Kiss’ & what does a grouchy mom have to do with it? Where did St. Francis of Assisi stop to rest during his pilgrimage along the St. James’ Way? Why is a frilly window in a medieval castle so important? When was a secret tunnel built under a hilltop town? How did three different kings contribute to one castle?