You don't even have to think that hard to know that the International Space Station is a truly incredible thing that humans have done. Good job us (or people much smarter than us). It's an amazing feat of engineering, it's an example of what can be done when different countries work together with one goal, and it taps into our innate dreams of the cosmos and being in awe with what's out there.
Not to mention, it's just really freaking cool to see humans do stuff in space and to see what the view is like up there and to just imagine in zipping around our Earth. Tien Nguyen explains for Ted-Ed how the ISS came together and how its an example of a huge collaboration effort for Team Earth:
The International Space Station is roughly the size of a six-bedroom house and weighs more than 320 cars -- it's so large that no single rocket could have lifted it into orbit. Instead, it was assembled piece by piece while hurtling through space at 28,000 kilometers per hour, lapping the Earth once every 90 minutes. Tien Nguyen explains how.