Pendleton Underground Tours is a fascinating journey into the hidden past of Pendleton, located in the USA. This is not just a museum, but an entire network of tunnels and rooms beneath Main Street that tell the story of Eastern Oregon's entertainment capital.
Organized by a non-profit organization in 1989, the tour allows visitors to see unique sites: from Hop Sing's Chinese laundry to secret card rooms from the Prohibition era. Special attention is drawn to the famous "Cozy Rooms" — one of many bordellos that once operated in the city — and authentic Chinese immigrant areas with opium dens and a jail.
This site is significant because it reveals the city's "shadow community," where privacy and safety were valued above all. The tunnels connected building basements and were used for storage, trade, and discreet movement, preserving the multifaceted atmosphere of the Wild West.