Mysterious listening tunnels

The listening tunnels in Petersberg Citadel were designed to protect the fortress from attack. If soldiers patrolling the underground passageways heard the enemy digging a tunnel into the hillside, they would sound the alarm to defend the citadel.

Join us on a tour of the mysterious listening tunnels

How did the soldiers feel as they listened out for noises in the dark passageways?

Take a tour with our city guides and learn all manner of fascinating facts about the colourful history of this impressive building.