Corisco International Airport — Corisco Island, Equatorial Guinea

Corisco Island covers only a few square miles of the Gulf of Guinea, yet the runway built at its airport, identified by the code OCS, stretches past 10,000 feet, a scale wildly disproportionate to the tiny population living there under Equatorial Guinea's administration. That mismatch reflects a broader pattern in the country, where oil wealth accumulated since the 1990s has funded infrastructure projects across even its most sparsely settled territories, well ahead of any demand those places currently generate. Corisco itself, part of Equatorial Guinea's mainland-administered territory despite sitting well offshore, remains largely undeveloped, its white-sand beaches and mangrove-lined shores drawing more speculation about future tourism than actual visitors today. Scheduled commercial service to OCS stays minimal, with the airport functioning more as a marker of potential than a working hub, similar to other oversized runways built across the country's smaller settlements during its oil-fueled construction boom.