Monastery of the Hieronymites and Tower of BelΓ©m in Lisbon
Standing at the entrance to Lisbon harbour, the Monastery of the Hieronymites – construction of which began in 1502 – exemplifies Portuguese art at its best. The nearby Tower of BelΓ©m, built to commemorate Vasco da Gama's expedition, is a reminder of the great maritime discoveries that laid the foundations of the modern world.