The Monastery of Sao Vicente de Fora is a 17th-century monastery that features impressive polychromatic marble and the tomb of several Portuguese kings.
Sitting high on a hill overlooking the center of Lisbon, the Moorish Saint George Castle looks exactly how a castle should look, with its imposing ramparts offering spectacular views over the city.
Under the distinctibe white dome, the National Parthenon pays tribute to luminaries in Portuguese history and culture, including navigators, kings, presidents, writers, poets, and even soccer players.
In a space once occupied by the royal palace, Lisbon's Praça do Comércio (or Commerce Square) occupies not just prime real estate but also a central place in the city's life.
The Palace of Sintra sits in the heart of the old town section of Sintra. From 1385 through 1880 it was a royal residence and summer escape.
Lisbon's national Maritime Museum pays homage to Portugal's proud maritime history from centuries ago.
Attached to the Igreja de São Roque, the Museu de São Roque displays artifacts related to the church's history, collections of the Jesuits, and other items.
Lisbon's Military Museum, housed in a 16th-century cannon foundry next to the Tagus River, showcases Portugal's important military history.
Portugal's oldest Jesuit church is plain on the outside, but inside it's beautifully decorated with a series of Baroque chapels.
Lisbon has nowhere near the level of rampant graffiti that Athens has, but there is still some creative and impressive street art in the downtown area.
One of Portugal's iconic landmarks, Belem Tower (Torre de Belém) was built in the early 16th century to guard the entrance to Portugal's global empire.