Centennial Tunnel
The Centennial Tunnel is an abandoned railway tunnel in Aringay, La Union, Philippines. The tunnel is 500 meters (1, 600 ft) long and 7.5 meters (25 ft) wide.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).
Other tunnels in Philippines
Delaware Aqueduct United States · 137 km Päijänne Water Tunnel Finland · 120 km Orange–Fish River Tunnel South Africa · 82.8 km Ishikawa Tunnel Japan · 78.5 km Brenner Base Tunnel Austria · 64 km Mont d'Ambin base tunnel France · 57.5 km Gotthard Base Tunnel Switzerland · 57.09 km Hong Kong–Zhuhai–Macau Bridge China · 55 km