🏰 Royston Cave
A mysterious underground chamber beneath a market town in Hertfordshire
📋 Fast Facts
- Located beneath Royston marketplace in Hertfordshire, England
- Rediscovered in 1742 during well-digging work
- Purpose remains uncertain; Knights Templar connection unproven
- Designated as a Scheduled Ancient Monument
Royston Cave is a small, roughly circular underground chamber carved into the chalk bedrock beneath the market town of Royston in Hertfordshire. First documented after its rediscovery in 1742, the cave has prompted centuries of speculation regarding its original function and builders. Its true purpose remains unknown, though theories range from a Templar meeting place to a 13th-century hermitage or chalk mine ...