A couple from Bristol who had trouble selling their house, found out they had an original Banksy on their wall, and received twice the asking price by selling the painting with a house attached.
7
There's a road in Lancaster, CA that has grooves carved in such a way that when you drive over them at 55 MPH, they will play a part of Rossini's "The William Tell Overture."
16
Canadian Nobel Prize recipient Dr. Frederick Banting, discoverer of insulin, sold the rights to the University of Toronto for $1 so that it was available to everyone.
11
There's a regenerative candle that creates a new candle as it melts.
20