who discovered the source of the Nile River

That's a classic bit of trivia that always pops up when you're chatting with travelers. David Livingstone is the one who gets the credit for "discovering" it back in 1855, but honestly, calling it a discovery is a bit of a stretch since the locals had been living near those falls for ages and called it Mosi-oa-Tunya, which basically means the smoke that thunders.

I've sailed past some pretty impressive sights in my time, but nothing quite compares to the scale of that place. When you're standing there, it's easy to see why he was so blown away by it that he named it after the queen. It's one of those spots that really makes you feel small, no matter how much of the world you've seen.