The 50 or so miles of trails that weave in and around the Twin Cities make up for the infamous icy winters. It’s not often you find cities that offer separate trails for runners and cyclists, but here you can stride at your own pace without the worry of a wayward biker weaving into your path. Training for a marathon? Practice your half around the 13.3 miles circling the beautiful Chain of Lakes just outside of downtown Minneapolis.
The other cities mentioned were Chicago, New York, Portland, Boulder, Washington DC, San Francisco, Austin, Boston and Atlanta.