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From clowns to tight-rope walkers, fire-eaters to elephant trainers, the modern circus has been around for centuries. Mike Williams explores its origins and asks why it appeals to adults and children around the world. As part of the programme, Mike learns how to do the flying trapeze, takes tips from an acrobat at the Moscow State Circus and hears from a clown from Cirque Du Soleil – who has a rather alarming story about audience participation. Mike also talks to a lion trainer with the biggest animal act in the world and finds out what happened when he accidentally fell on one of his big cats.

Produced by Sally Abrahams

(Photo: Martin Lacey jr. performs at The Circus Krone Show in Munich, Germany. Credit: Hannes Magerstaedt/Getty Images)