# Seattle Underground

A network of subterranean passages and basements in Pioneer Square that were once at ground level. After the Great Fire of 1889, the city was rebuilt one story higher, leaving behind a 'buried' city of abandoned storefronts and sidewalks.

## Key Facts
- **Type**: activity
- **Address**: 614 1st Ave, Seattle, WA 98104
- **Website**: https://www.undergroundtour.com/
- **Hours**: 10:00 AM - 7:00 PM (Daily)
- **Entry**: $22 adults, $10 children.
- **Price tier**: moderate

## Family Amenities
- History Storytelling
- Hidden Storefronts
- Daytime Family-Friendly Tours
- Central Pioneer Square Location

## Insider Tips
Bill Speidel's is the original and best for families—it’s heavy on humor and storytelling. You'll literally walk under the modern sidewalks and see the ghost-lights (purple glass) that used to illuminate the basements.


## Sources
- [Bill Speidel's Underground Tour](https://www.undergroundtour.com/)

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Source: Outline Travel. Last verified: 2026-04-07.
Permanent URL: https://outline.travel/destinations/seattle/seattle-underground/