Books Similar to "King Solomon's Mines"?

I just finished King Solomon's Mines by H.Rider Haggard and really enjoyed the book, specifically the idea of turn-of-the-century explorations to lost kingdoms/uncharted jungles. I was wondering if anyone could recommend any other books similar to this (late 19th, early 20th colonial exploration/adventuring). I know its part of the whole lost world genre, but any specific books you could recommend would greatly be appreciated. Thank you.