This route takes you from the northern most point of Death Valley National Park to its southern most point. No trails, no roads. It is about 160miles long and run the length of the Death Valley. The route proposed here is the one Roland Banas followed, but you are encouraged to make your own. Only the start and the end points matter.

The East Devon Way is a 40-mile route along the SW coast of the UK, from Exmouth to Uplyme.

"This beautiful inland route had almost been forgotten, but we have put it back on the map with updated waymarkings along the route, a new guidebook and an interactive map, listing businesses within easy reach of the path."

The Vennbahn is one of Europe's longest railway track cycling trails, at 125km.  It goes from Aachen (Germany) to Troisvierges (Luxembourg), passing through eastern Belgium along the way.  Since it's a rail trail the grades are very moderate (2%).