Traveling the picturesque sidewalks of Old Town Fort Collins, you may not know what's beneath your feet. Lori Juszak didn't either.

In 2011, Juszak was meeting with owners of Old Town buildings to research their history for her then-new business, Fort Collins Tours, when she was asked a question she'd never expected: "Do you want to see what's underneath?"

Read more and see a video from the Fort Collins Coloradoan: