Ringling Bros. and Barnum & Bailey Circus

Coulrophobics may be happy. But fans of the red-nosed jesters have cause for concern. What if there's a call to send in the clowns and no one's there to answer?

What's 42 feet long by 22 feet high and has dozens of peoples and animals on it? The Greatest Show On Earth, a massive mural by William Woodward.It was…