Port of Spain is a town.
The Port of Algeciras is the port and harbour of Algeciras , a city located in the province of Cádiz in the autonomous community of Andalusia , Spain . The Port of Barcelona ( Port de Barcelona , [ ˈpɔr ðə βərsəˈɫonə ] ; Puerto de Barcelona ) has a 2000-year history and great contemporary commercial importance as one of Europe 's ports in the Mediterranean , as well as Catalonia 's largest port , tying with Tarragona . Port of Spain is the capital city of the Republic of Trinidad and Tobago and the country 's third-largest municipality , after Chaguanas and San Fernando . The city serves primarily as a retail and administrative centre and it has been the capital of the island since 1757 . Today , Port of Spain is a leading city in the Caribbean region .