Fire and water.
They're agents of change, and Saturday a walking tour represented how mother nature has changed the city of Marietta over the years.
The annual tour gives people a look at how weather affects cities built along water - particularly with flooding.
The group learned how weather has affected Marietta properties.
"It never gets old, it never gets boring. There's a lot to see, there's a lot to do. When things are really familiar you don't appreciate them. So if we stop and take a look around, you might find there's some pretty cool stuff in your own backyard," says Lynne Sturtevant, owner of Hidden Marietta.
Fifty people went on the 90 minute walk.
The tour was free.