1. Moonville Tunnel, Moonville, Ohio

Photo: Moo Kitty / Flickr (CC)
2. Sensabaugh Tunnel, Church Hill, Tennessee

3. Twin Tunnels, Downingtown, Pennsylvania

Photo: Weird US
4. The Screaming Tunnel, Niagara Falls, Ontario, Canada

5. Blue Ghost Tunnel, Ontario, Canada

Photo: Wikimedia Commons
6. Hoosac Tunnel, Western Massachusetts

7. Church Hill Tunnel, Richmond, Virginia

Photo: Wikipedia
8. Gold Camp Road Tunnels, Colorado Springs, Colorado

- Photo Credit: Wikimedia Commons
9. Shanghai Tunnels, Portland, Oregon

- Photo Credit: Wikimedia Commons
10. Big Bull Tunnel, Wise County, Virginia

Photo Via The Tunnel Diaries