Final answer:
Chaguanas and San Fernando, with landmarks including the National Academy of Performing Arts and the Red House, are located in Trinidad and Tobago.
Step-by-step explanation:
Chaguanas, being the largest city mentioned, and San Fernando, with landmarks such as the National Academy of Performing Arts and the Red House, are both located in the country of Trinidad and Tobago. This twin-island nation is situated off the northern edge of South America, lying northeast of Venezuela and south of Grenada in the Lesser Antilles.
The Red House in Port of Spain serves as the Parliament building and is a key historical site, while San Fernando is Trinidad's second-largest city, and Chaguanas is a major urban center with rapid growth in recent years.