Window washers dressed up as superheroes to surprise kids in the hospital

Kids at Canada's Kingston General Hospital got an exciting surprise yesterday: Out of nowhere, a whole team of famous superheroes appeared and started washing their windows. 

Employees of Elite Window Cleaning in Kingston, Ontario, volunteered to dress up as superheroes and scale the wall of Kingston General Hospital.

"Batman, Thor, Spiderman and other superheroes took the day off from fighting crime to surprise kids at the hospital," local news station CKWS reported. "Dozens of pediatric patients and children battling cancer watched in amazement as some of their favorite crime fighters cleaned windows right in front of them."

Here are a few of the most adorable snapshots from the day: