I've seen some awesome sights in some extraordinary places: the Swiss Alps, the South African Savannah, the beaches of Ghana. But nothing I've seen compares to the Grand Canyon in Arizona. The sheer scale of the Canyon and its intricate rock faces against the backdrop of the wide clear blue sky are simply incredible, and leave you breathless.
Of course, I enjoyed these views with Jordan, so my experience is probably a bit biased in the positive direction. Still, the Grand Canyon was one of the most incredible places I've ever been.
