Game of Thrones, Dorn. Reality: Royal Alcazars of Seville – Baths of Lady Maria de Padilla.
According to the legend, María de Padilla, a Christian noblewoman and lover of King Pedro I (Pedro the Cruel), took baths in this place. This king loved her to such an extent that managed to proclaim her queen when she died. Not really a bathtub, it’s a stone water cistern built in the 12th century by the Moors to collect rain. Basically, rainwater tanks beneath the Patio del Crucero.