Our vacation to Vermont included a trip to the Shelburne Museum. They have a semi-circle building that contains little except the hand carved circus parade. Here is a tour of that building.
There is a semicircle building that houses a hand carved circus parade. The length
of the parade is more than 525 feet.
I took these pictures of the building so that you could get a feel for how large it is. Pictured
above is the left third of the building.
Here is the center of the building with my wife to show the size of the building.
Here is the right third of the building along with a real carousel.