La Glorieta is the only proper castle in Bolivia: a pink, turreted fantasy on the southern outskirts of Sucre that combines Mudéjar, Byzantine, Gothic, Renaissance and French Baroque elements in a single building. It was built between 1893 and 1898 by Don Francisco Argandoña and his wife "Princess" Clotilde Urioste, a couple of immensely rich silver and tin barons who used the castle to entertain Bolivian society and house the orphans they sponsored.
The interior has been stripped of most of its furnishings — these were sold off after the family died out and the army took over the estate — but the chapel ceiling, the carved staircase and a few rooms have been restored. The grounds are pleasant, with views back across the valley to the white city. To get there, take a taxi or trufi 4 south for about 5 km. The castle now shares its grounds with a military academy; visiting hours are limited and you may be turned away if there is an official function, so call ahead if possible.