Did you know you can hike to this abandoned and historic railroad tunnel in Arizona? The work on this tunnel began all the way back in the 1880’s, and was never completed. To hike to this tunnel, you will set out on a ~4 mile roundtrip hike beginning in Payson, Arizona. It is beautiful to hike during the fall, but summer is also a great time. I do recommend going early. Surprisingly, it can get very warm there. @Dogs are welcome on this trail, but please keep them on a leash and pick up after yo

Let's take together the Eurotunnel (Channel Tunnel), a 50.46-kilometre (31.35 mi) railway tunnel that connects Folkestone with Coquelles in France beneath the English Channel at the Strait of Dover. The journey takes 35 Minutes! | Wonders of London