The Praça do Comércio, better known as Terreiro do Paço, is a square in downtown Lisbon located by the Tagus River. This square was the place where the Royal Palace of Lisbon was established for more than 200 years.

Classified as a National Monument, the Sé de Lisboa is the oldest cathedral and church in the city. It began to be built in the year 1147. Since that year, the building has been modified on several occasions and has survived earthquakes. Currently, the Sé de Lisboa is the result of a mixture of different architectural styles.

Located in Parque das Nações, it is the second largest oceanarium in Europe. In 1998 the Ocean Building opened to the public, making Lisbon's connection with the ocean eternal. At the same time, it created a link between the past, geared towards its discovery, and the future, directed towards its knowledge and conservation. The oceanarium contains an impressive collection of species of birds, mammals, fish, and other marine animals.