No, Neuschwanstein Castle was never fully finished. Construction began in 1869 under King Ludwig II of Bavaria, but the project was plagued by delays and the King's mounting debts. When Ludwig died mysteriously in 1886, construction halted immediately. At the time of his death, only about 14 of the planned 200 rooms were actually completed and decorated. The most famous finished spaces include the spectacular Throne Hall (though it lacks an actual throne), the Singer's Hall, and the King's bedroom. Many other areas, including the massive "Keep" or main tower and the elaborate gardens with a fountain, were either abandoned or built in a significantly simplified "placeholder" style just to make the building look complete from a distance. Ironically, Ludwig intended the castle to be a private, anti-social retreat, but it was opened to the paying public just six weeks after his funeral to help pay off the construction debts. Today, it stands as the world's most famous "unfinished" monument, looking like a fairytale masterpiece from the outside while containing vast, empty brick shells on the upper floors.