Bill Speidel’s Underground Tour

Bill Speidel's Underground Tour offers a 75-minute guided walking journey through subterranean passageways and ruins buried beneath modern Pioneer Square. Content highlights the eerie, dilapidated interiors and historic remnants, such as old steam bath signs, while detailing how the city was rebuilt. Because of its popularity, tour itineraries frequently sell out in advance.

Commenters show strong excitement about visiting the underground ruins, often sharing personal ghost stories and spooky encounters. Others frequently ask for specific tour guide recommendations and discuss pairing the trip with nearby historic spots.