The National Museum and Art Gallery of Trinidad and Tobago is the country’s most important museum. It displays depictions of national festivals, Carnival, life during the World War II and artifacts from the country’s earliest settlers, the Amerindians. There are also displays by leading local and international artists, with exhibitions being mounted at various times during the year. The museum was established in 1892 and was originally called the Royal Victoria Institute, as it was built as part of the preparation for Queen Victoria’s jubilee. The National Museum is located in close proximity to Memorial Park, NAPA. A little further away from the National Museum are Living Water Community on Frederick Street, the General Hospital, including the Maternity block, Holy Name Convent School and Chapel, Jerningham Avenue which accesses Belmont and the Queen's Park Savannah, all of which are laid out in a semi circular order.
The National Museum has two smaller branch museums:
Fort San Andres which is located on South Quay, opposite City Gate. According to Geoffrey MacLean, in the Trinidad Express Newspaper in December 2014, "the fort, which replaced a mound of mud and wood that served as the only defence of Port of Spain, was, when completed in 1787, located offshore and linked to the mainland by a wooden bridge." 
The Trinidad and Tobago Police Service Museum which is located at the Old Police Headquarters on St. Vincent Street. This Museum is in close proximity to the Old Cabildo Building, called the Law Museum as of August 2012 by the Guardian TT when it was reopened, the Ministry of Legal Affairs, and the Colonial Life Insurance Co Ltd building, known as CLICO, and opposite to CLICO is the RED HOUSE.
If you are interested in reading more on the topic, perhaps you can visit the site and access the related links which are listed at the bottom of the page https://en.wikipedia.org/wiki/Port_of_Spain