10 Creepiest Places to Visit on Earth - Shanghai tunnels • Earth.com

Last update: November 21st, 2019 at 11:00 am

Shanghai tunnels in Portland, Oregon

The Old Portland Underground, better known locally as the Shanghai tunnels, are a group of passages in Portland, Oregon, United States, mainly underneath the Old Town/Chinatown section and connecting to the main business section.

Fresh News coming
your way, Weekly

The biggest news about our planet
delivered to you each day