Lisbon (/ˈlɪzbən/, LIZ-bən; Portuguese: Lisboa, IPA: [liʒˈboɐ] or [liʒˈβoɐ]) is the capital city and largest city of Portugal with a population of 547,631 within its administrative limits on a land area of 84.8 km2 (33 sq mi). The urban area of Lisbon extends beyond the administrative city limits with a population of over 3 million on an area of 958 km2 (370 sq mi), making it the 11th most populous urban area in the European Union. About 3,035,000 people live in the Lisbon Metropolitan Area (which represents approximately 27% of the population of the country). Lisbon is the westernmost large city located in Europe, as well as its westernmost capital city and the only one along the Atlantic coast. It lies in the western Iberian Peninsula on the Atlantic Ocean and the Tagus River.
The 25 de Abril Bridge(Ponte 25 de Abril "25th of April Bridge", Portuguese pronunciation: [ˈpõt(ɨ) ˈvĩt(ɨ) ˈsĩku dɨ ɐˈbɾiɫ]) is a suspension bridge connecting the city of Lisbon, capital of Portugal, to the municipality of Almada on the left (south) bank of the Tejo river. It was inaugurated on August 6, 1966 and a train platform was added in 1999. Because it is a suspension bridge and has similar coloring, it is often compared to the Golden Gate Bridge in San Francisco, USA. In fact, it was built by the same company (American Bridge Company) that constructed the San Francisco-Oakland Bay Bridge and not the Golden Gate, also explaining its similarity in design. With a total length of 2,277 m, it is the 23rd largest suspension bridge in the world. The upper deck carries six car lanes, while the lower deck carries two train tracks. Until 1974, the bridge was named Salazar Bridge (Ponte Salazar).