The Rothenburg Imperial Castle (circa 1142) was located in what is today called the Castle Garden. The Castle was destroyed in the earthquake of 1356. The only surviving building, the prison was rebuilt (circa 1400) by Mayor Toppler into the Chapel of St. Blaise. The Burgtor (Castle Gate, circa 1356) leads from the chapel and garden into Rothenburg Town. It features two round guard houses (16 century), a mask through which Rothenburg defenders would pour hot tar on enemies, and the eye-of-the-needle door within a door.