While we usually use roads to move people and pipes to move water, sometimes, nature presents us with obstacles that make it impossible to travel as per usual. And be it massive mountains, large bodies of water, or dense forests, sometimes it is necessary to create tunnels to make things safer and more efficient. However, there are some tunnels out there that are absolutely massive and continue on for exceptionally long periods of time. So today, strap on your seatbelts and get ready for a long ride as we count down the Top 15 LONGEST Tunnels on Earth!
Courtesy of Top Fives