An anti-abortion climber scaled a 40-story building in downtown Phoenix on Tuesday without any ropes or any other sort of safety equipment ... leaving Super Bowl week attendees shocked on the ground below.
Maison DesChamps -- a daredevil known as the "Pro-Life Spiderman" -- performed the stunt to raise money ... beginning his ascent on the Chase Tower at around 9 AM.
DesChamps wedged himself in between a crevasse in the building -- and inched his way up to the top -- as spectators who had flocked to the city for Super Bowl LVII gathered on the streets below to watch.