Any parent who has had a child in the hospital knows just how hard it can be.
Children's hospitals around the country work to make the experience as painless as possible.
At Seattle Children's Hospital, patients often spend their time reading the book "Where's Waldo." A group of local construction workers have brought Waldo to life.
Each day, the children can look out their windows to search for a dummy dressed to look like the storybook character.
Sellen Construction workers have been building the hospital's new expansion for months. They created Waldo so the young patients can have a fun game to play from their rooms.
"You know Waldo came to work with us about six months ago... and he's here to bring hope for the kids," said Sellen project foreman Jerry Kelly. "It's exciting to see the kids in the windows every day."
The construction workers say they look up every morning to little faces pressed against the windows.
"It's touching," Kelly said. "All these big construction guys out here feels... for these kids."