Misc: What's the location of the "Circus Hall of Fame"?

Questions

"Working with ------------- is like getting hit over the head with a valentine."ZZZ- Christopher Plummer?

"...For that's the way it is with life, as some of the most beautiful days come completely by chance. But even the most beautiful days eventually have their ----------." - Author Unknown?

"--------------- is interest paid on trouble before it is due."- William Inge?

"------------ should merely indicate where the smiles have been."- Mark Twain (1835 - 1910)?

"A -------- is like a barbed-wire fence. It protects the property without obstructing the view."- Joey Adams?