In 1872 President Ulysses S Grant signed an order turning Yellowstone into the world’s first national park, and it celebrates its 150th anniversary on March 1. Better, though, to hold off paying homage to this geothermal wonderland until the summer, when nondrivers can join a guided road trip. Over eight days on the road you will hike to Mammoth Hot Springs, watch Old Faithful, see the Mud Volcano and float on the Snake River in Grand Teton National Park.
Details Seven nights from £2,125pp, including five breakfasts (explore.co.uk). Fly to Salt Lake City
The 2,448-mile Mother Road was decommissioned in 1985, but it soon became clear that they couldn’t kill a highway that Congress called a “symbol of the American people’s heritage of
