Kids, parents, even some princesses and turtles ran in the museum's annual event.
The race also included Linda Wortman. A never-smoker lung cancer survivor who has ran a 5K race in 38 states all to raise awareness.
"18 months ago I started running a 5K race in every state to spread the word that lung cancer can kill anybody, including never-smokers," said Wortman, from Big Sky, Montana. "Lung cancer, every year, kills more men and women than 7 other cancers combined."
Wortman planned to run a second race in Virginia Saturday and then head to Maryland for a race on Sunday.
The Halloween Hustle 5K is the biggest fundraiser for the Children's Discovery Museum.
"We really feel strongly about healthy kids and making sure that they understand how to be healthy so we thought that the 5 K was a great thing," said Angela Carver, the President of the Board of Directors at the Children's Discovery Museum. "And incorporating Halloween and costumes has really been a fun and great time for everyone."
The Children's Discovery Museum is opened Tuesday through Sunday from 10-1.