Sturdy Lisbon Cathedral is perhaps ... it resembles a fortress nearly as much as a cathedral. This 1147 building survived the devastating 1755 earthquake. St. Anthony was baptized here in 1195.

Castelo de São Jorge, or St. George's Castle, is perched atop Lisbon's highest hill in Alfama ... palace before it was eventually taken by Portugal's first king, Afonso Henriques.