We all know the USA consists of 50 states and, if your cartographical knowledge is fairly sound, you'll be aware that of these, just two - Alaska and Hawaii - do not share a land border with another state.
What's the significance of this? Well, for those dreaming of embarking on a road trip somewhere in the world, what could be more epic than driving through all 48 states of the contiguous USA?
Luckily for you, singles holiday abroad specialists TrekAmerica have just such a trip on their books, which they call 'The Great 48'. Here's a taster of what you can expect from 80 days on the road in the US of A:
Being a vast country, thousands of miles across, the USA is home to a spectacular range of scenery. As you eat up the miles, the vista outside your window will be ever-changing. Deserts, mountains, forests, lakes and cities await as you traverse from east to west, and undulate from south to north and back again to ensure you're crossing every state line along the way.
No, not the threat of floods and famine posed by global warming, but the natural variation you'll experience as you travel from as close to the equator as 24.5 degrees north in Key West to as close to the North Pole as 47.6 degrees north in Seattle - a difference of 1,600 miles. Not to mention that between these two points - one as far south-east as possible, the other as far north-west - you'll encounter many other unique climatic zones, from lush valleys to arid deserts. You'll certainly need to pack a few different outfits in your suitcase.
The USA is home to some of the greatest cities on Earth, but most people only experience a handful in their lifetimes. Hit up all 48 states, however, and you get to enjoy the lot - New York, Chicago, New Orleans, Las Vegas, Los Angeles, San Francisco, Seattle, and many more. By the time you're done, you'll have seen more landmarks than you can remember, so don't forget your camera to capture it all.
America is far from a concrete jungle, however, and you'll also get the opportunity to explore some of the finest national parks on the planet including the Grand Canyon, Yellowstone and Yosemite, where the scenery is on as epic a scale as the Great 48 road trip itself. If you thought the skyscrapers in New York were big, just wait until you catch your first glimpse of El Capitan in Yosemite - a huge lump of rock that represents the ultimate climbing challenge - or peer down into the depths of the Grand Canyon, which could swallow a whole city.
Of course, travelling isn't just about seeing new places, it's about meeting new people too, and you'll have plenty of time to get to know your fellow travellers during almost three months on the road, not to mention all the locals you'll encounter along the way. Creating memories and friendships to last a lifetime is what road trips are made for, and asphalt adventures don't come much bigger than visiting 48 of the 50 US states in one go.