The Castle of Hearts a place in the magical world of Wonderland in Lewis Carroll's Alice in Wonderland. It is the home of the Queen of Hearts. The castle is set atop a very steep hill. Everything about it, from the windows to the flags, the rugs, the wallpaper and the doors and archways, is heart-shaped. The Tin Woodman, on his own personal quest for a heart, really likes the decor. The roses in the garden are white, though some are painted red.