The Port of Spain was founded near the site of the Amerindian fishing village of Cumucurapo ("place of the silk cotton trees"), located in the area today known as Mucurapo, west of the city centre.
The part of today's downtown Port of Spain closest to the sea was once an area of tidal mudflats covered by mangroves. The first Spanish buildings here, in the 16th and 17th centuries, were open mud-plastered ajoupas, interspersed between large silk cotton trees and other trees.
An administrative/operations building for the Trinidad and Tobago Air Guard is being constructed at the Piarco Air Base. Also, a military airfield will be constructed near the air base.
The control tower at the old terminal building is currently used for air traffic control. The tower at the new terminal building is used for ramp control and runway movement control.