Knoxville has charm, but a handful of ugly structures in the city's core are dictionary-definition scruffy: unkempt, shabby and worn. 

If character is what makes a downtown Knoxville building attractive, then lack of character can make it an eyesore.

Ryan Wilusz, Kelli Krebs and Brenna McDermott explore the ugliest buildings in downtown Knoxville. 

"The Scruffy Stuff" is presented by knoxnews.com.