The Appalachian Trail is the longest hiking trail in the world, stretching for 2,190 miles from Georgia to Maine.
The Pacific Crest Trail is another long-distance hiking trail, running for 2,650 miles from California to Washington.
The Continental Divide Trail follows the Continental Divide for 3,100 miles from Mexico to Canada.
The Ice Age Trail is a 1,200-mile trail that follows the edge of the last glacier in Wisconsin. It's a relatively easy trail
The C&O Canal Towpath is a 184-mile trail that follows the old C&O Canal from Washington, D.C. to Cumberland, Maryland
The Katy Trail is a 240-mile trail that follows an old railroad bed from St. Charles, Missouri to Clinton, Iowa.
The Swamp Rabbit Trail is a 22-mile trail that follows an old railroad bed from Travelers Rest to Greenville, South Carolina.
Ke Ala Hele Makalae is a 112-mile trail that follows the coastline of Kauai, Hawaii. It's a challenging trail
The Chuck Huckelberry Loop is a 130-mile trail that loops around Tucson, Arizona. It's a paved trail, making it a great choice for biking, hiking, or running.