Look for the building with the bricked-up cellar windows. It was here that perceived enemies of the regime were interrogated and either shot or sent to Siberian work camps. The plaque reads, ‘This building housed the headquarters of the organ of repression of the Soviet occupational power. Here began the road to suffering for thousands of Estonians.’ Interestingly, the KGB used the tall spire of the nearby St. Olaf’s Church to send radio transmissions.