veronica histova Watch this amazing circus performer hop up 9 steps with one arm Carla Sinclair

head start Watch this fellow bounce up 36 stairs on his head David Pescovitz

figure skating Watch these incredible and utterly dangerous moves banned from figure skating competitions David Pescovitz

acrobatics Watch this incredible record-setting backflip David Pescovitz

acrobats Check out Disney's robot acrobat David Pescovitz

fire breathing Fire-breathing, twisting backflipper sets world record David Pescovitz