Admire Yellowstone National Park
Still to do
What it is
Yellowstone was the world's first national park and has more than half the world's geysers, including Old Faithful.
How to do it
Fly to Jackson or Bozeman and drive in. See the Grand Prismatic Spring and look for bison and wolves in the Lamar Valley.
Top tip
Stay on the boardwalks; the ground near thermal features can be thin and scalding.
Why it’s on my list
Not done yet. If you’ve done it and have tips, tell me about it.