Via the wonders of Google, I came across a Time Magazine piece on parkour while researching hip flexor strains. Go figure. Parkour is a fascinating activity, and obviously one that requires excellent physical conditioning, coordination, agility, strength and mental acuity. Not so different from serious training in a martial art.
There are several fascinating sequential photo montages of traceurs vaulting from rooftops and landing, or traversing the exterior of a building in a controlled fall. If you’re an appreciator of human movement, give it a look.
Check it out here: An Urban Adventure