On the ground floor, destined for the use of Maximilian and his wife, Charlotte of Belgium, worthy of note are the bedroom and the archduke’s office, which reproduce the cabin and the stern wardroom respectively of the frigate Novara, the war-ship used by Maximilian when he was Commander of the Navy to circumnavigate the world between 1857 and 1859; the library, whose walls are lined with bookshelves and the rooms of the Archduchess with their tapestry of light-blue silk. All the rooms still feature the original furnishings, ornaments, furniture and objects dating back to the middle of the 19th century. Many coats of arms of the Second Mexican Empire decorate the castle, as well as stone ornamentations on the exterior depicting the Aztec eagle.