Bill Speidel's Underground Tour

The story

In June 1889, a glue pot boiled over and set fire to 31 blocks of wooden Pioneer Square. When the smoke cleared, city leaders faced a notorious problem: high tides regularly caused the town's plumbing to flow backward. Their solution was to raise the entire street grid up to two stories higher. Property owners, impatient to reopen, rebuilt their brick shops on the original ground level anyway, leaving pedestrian sidewalks and store entrances sunken below until retaining walls were built and new streets were paved over top.

For over half a century, those subterranean arcades and original storefronts sat buried beneath Pioneer Square, used for storage, cheap lodging, or completely abandoned. That changed in the mid-1960s when local columnist and preservationist Bill Speidel realized Seattle's buried bottom floor was a goldmine of history and local lore. He began leading paying groups down into the dark, dusty void, using the tour's popularity to spearhead a campaign that saved historic Pioneer Square from total demolition.

What you're walking through isn't a theme park set; it's literal 19th-century Seattle trapped under concrete, illuminated by dim overhead lighting and the purple glow of glass prism skylights embedded in the sidewalks above. The tour guides keep the experience rooted in the town's rough-and-tumble past, spinning uncensored stories of corruption, pioneer saloons, and civic schemes that shaped the early city.