The Royal Victoria Institute is one of Port of Spain's historic civic buildings, associated with the city's museum tradition and colonial-era cultural institutions. Its architecture and location make it useful even when exhibitions or access change, because it helps explain the formal, public side of the capital around Queen's Park Savannah.
Treat it as part of a wider walk rather than a single-purpose destination. The area around the Savannah, the Magnificent Seven, and nearby cultural buildings is one of the best places in Port of Spain to read the city's history in stone, timber, and verandas. Check current museum arrangements before planning around the interior.