No photograph
on file
Est. 1937
Photo: FloNight (Sydney Poore) and Russell Poore / CC BY-SA 3.0 via Wikimedia Commons
Prison / Reformatory

Constitution Square Historic Site

Kentucky's first jail once held America's first serial killers — and investigators say someone still walks the replica grounds

125 S 2nd Street, Danville, KY 40422

Wheelchair Accessible Research-Backed · 4 sources

Research updated August 2026

Age

All Ages

Cost

Free

Self-guided grounds access free year-round; group tours $2 students / $3 adults (10+ person groups, booking required)

Access

Wheelchair OK

Paved park grounds with replica log structures

Equipment

Photos OK

Motion-sensor activation in unoccupied roomsVoice-box responses during EVP sessionsUnexplained electromagnetic field readings

The 859 Paranormal Research group has documented the most detailed investigation of Constitution Square on record. Their 2023 session, arranged through the local visitors bureau, focused on two buildings: Grayson's Tavern and the replica jail associated with the Harpe Brothers.

In Grayson's Tavern, investigators set up infrared cameras and motion-activated LED cat balls in each room. Before leaving the tavern, a single cat ball in an unoccupied room began lighting up persistently — staying lit as if continuously triggered, then going dark. Investigators attempted to reproduce the activation by stomping and jarring the table the ball rested on: it would not trigger. The ball passed a battery check and functioned normally when tested directly. No mechanical explanation was confirmed.

In the replica jail, the team conducted radio-wave sweep sessions. At one point, an investigator asked a question and recorded what she interpreted as an audible response — 'help me' followed shortly by 'not sure.' The session produced additional voice-box responses that the team described as showing intelligent pattern, though the recordings fell short of conclusive evidence.

Local tradition has long connected the site's activity to the Harpe Brothers, whose documented crimes make them among the most notorious figures in early American frontier history. Whether the jail's replica structure could carry any residual connection to the originals who occupied the now-demolished original building is a question the investigators left open.

Notable Entities

Micajah 'Big' HarpeWiley 'Little' Harpe

Plan Your Visit

2 ways to experience
Self-Guided Visit

Self-Guided Grounds Tour

Walk the open-air park and replica 18th-century buildings including the jail that once held the Harpe Brothers, Grayson's Tavern, the courthouse, and the original U.S. post office. A free online guide-by-cell audio tour is available.

Duration:
1 hr
Get directions
Guided Tour Booking Required

Guided Group Tour

Led tours for groups of 10 or more covering the site's constitutional history and darker episodes. Contact McDowell House Museum to arrange.

Duration:
1.5 hr
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Sources & Further Reading

Every HauntBound history is researched from documented sources. We clearly separate verified historical fact from paranormal folklore.

  1. 1.en.wikipedia.org/wiki/Constitution_Square_Historic_Site
  2. 2.mcdowellhouse.com/constitution-square
  3. 3.theinteriorjournal.com/2023/10/31/halloween-hauntings-part-2-is-danvilles-constitution-square-haunted
  4. 4.en.wikipedia.org/wiki/Harpe_brothers

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Frequently Asked Questions

Is Constitution Square Historic Site family-friendly?
Open-air park suitable for all ages. History includes violent crimes but presented in educational context. Overall family fit: High.
How much does it cost to visit Constitution Square Historic Site?
Self-guided grounds access free year-round; group tours $2 students / $3 adults (10+ person groups, booking required) This location is free to visit.
Do I need to book in advance?
No advance booking is required, but checking availability is recommended.
Is Constitution Square Historic Site wheelchair accessible?
Yes, Constitution Square Historic Site is wheelchair accessible. Terrain: Paved park grounds with replica log structures.