For those who love history this is a must visit in Lisbon. The Torre de Belem was exceptionally interesting with beautiful architecture and very narrow staircases. You really need to get there before 5pm if you wish to explore the Torre inside and take your time strolling around. The architectures was simply beautiful with bricks that had details in them that you just stair and wonder and say to yourself WOW! This Toree goes back to 1514 and was built mainly to protects the entrance to the city of Lisbon. It is also one of the seven wonders of Portugal and truly a must visit sightseeing. We happened to visit on a slow day when it wasn't crowded and it was simply a pleasure.