I suspect most people who drive through Kansas and Nebraska do so only because they cannot avoid them to get to their destination. I also suspect that most people keep to the interstates of which there is one in each state bisecting it completely from border to border. With that, I will guess that most people who have traveled through Nebraska or Kansas have never seen Toadstool Geologic, Carhenge, Chimney Rock, Scotts Bluff, Monument Rocks or Little Jerusalem Badlands. Too bad, because these are jewels adorning the vast flat topography of the great plains.
One of them is man-made inspired by stone formations, while the others are strange and abrupt geological landmarks formed by the power of weather-driven deposition and erosion. The alternating layers of hard and soft rocks interrupt the flat lands with dramatic vertical appearances that fan out at their base. When viewed from a distance they appear as aberrations and viewed aerially, look like injuries to an otherwise smooth landscape. When you see these rock formations, you get the sense they did not look like that millions of years ago. Indeed, what remains standing are testaments to the durability of hard rock as the surrounding softer rock eroded away over time. Often, odd shapes have formed from large clumps of sturdy sandstone that appear balanced delicately atop narrow vertical outcroppings – such are the toadstools or hoodoos. They have won the test of time and their ongoing erosion is undetectable to the human eye.
Escaping far and wide from the vertical rocks are deep crevices or arroyos that appear like spindly tree branches extending across the landscape, only to be seen from above. This severe landscape is often referred to as badlands and indeed, the progress of westbound pioneers was impeded by them. Emigrants typically traveled along the Platte River Valley as part of the Oregon Trail. When they arrived at Scotts Bluff, the travelers were forced to move out of the valley to find a pass that would allow them to continue westward. Other formations such as Chimney Rock served as familiar landmarks for travelers.
Otherworldly is a term used often to describe these rock formations. I cannot help but think of many Star Trek episodes where the landing party finds themselves among strange geologic formations on a desert-planet. No need to travel to another galaxy, simply get off the interstate and explore Nebraska and Kansas. One does not have to boldly go where no others have been because these points of interest are not difficult to get to; you simply need the desire to see them.