The straight-down-the-middle castle: four turrets, faux-stone airbrushing, pennant flags, and a full-size 15 × 15 ft floor with mesh on every side. This is the unit to take when nobody has specified a theme — a castle offends no one and sits against any color scheme. Dry only, 20 × 20 ft of level ground, one outlet, ages 3 and up. At 13 ft it stands a foot shorter than the Big Top, which is the difference that matters if you are going indoors.