Visitors walk through the the Mitsuzo and Kyoko Shida Evaluation Garden at the Chicago Botanic Garden in Glencoe, Illinois on Oct. 4, 2023. Trent Sprague/Chicago Tribune/TNS
The dull visual of a long road is interrupted by a gravel footpath that winds back and forth across the pavement, tiny rocks turning to bricks when the path crosses the asphalt. But the eye is drawn to something else: not the trail, but the greenery growing on its fringes.