There are plenty of grand old churches you can visit around Spain, but how often are you afforded a private tour with an expert guide? On the outskirts of sun-drenched Seville, on the banks of the Guadalquivir River, sits the indomitable Cartuja Monastery. One of the region's most important religious monuments, the Baroque monastery, aka the Monastery of Santa María de las Cuevas, is tranquil and triumphant in equal measure. Hear its stories and secrets, and enjoy a true Seville hidden gem.