I just finished Douglas Preston's "The Lost City of the Monkey God" about an archaeological expedition into previously uncharted jungles in Honduras. He's a fictional writer whose style I enjoy, but this was a real-life account of his journey.
The first 3/4 of the book was fantastic, covering the politics of the area, the dangers they encountered, the red tape they had to navigate, the team, previous failed attempts, the technology used, etc. Archaeology is an interest of mine and a field I wished I'd pursued, so I found it really compelling.
The last 1/4 went a little too in depth about the disease that the crew contracted (leishmaniasis) during the expedition. However, it made me aware of an ancient disease I'd never heard of before that could be making a bit of a comeback.