Anastasia IV from Poland joined the circus at eighteen. She performs one of the most risky and unusual acts in the circus: hair-hanging. Anastasia endures pain in her scalp and neck as she swings around the auditorium suspended by a metal ring which is plaited into her hair. She says it's 'the closest you can get to actually flying like a bird'

Sarah Swarz grew up in a circus family in Germany and started performing at the age of ten. She trained as a wire walker, contortionist and acrobat. She and her husband live in a trailer and travel with their Piglet Circus where her pig Max, is the 'boss of the show' - he can use a microphone and is trained to undo her clothes for a striptease routine.

Anastasia IV (r) (credit: Circus of Horrors)