Underland: A Deep Time Journey by Robert MacFarlane
A beautifully written book on mythology, exploration, and what lies just beyond our sight. Part travelogue, part meditation on the natural world, part history -- this book will stay with you for a long time.
River of Doubt: Theodore Roosevelt’s Darkest Journey by Candice Millard
The utterly captivating story of Teddy Roosevelt’s scientific journey down Brazil’s River of Doubt in 1914. The expedition was so famous and wild that they renamed the river. It is now Roosevelt River. This is edge-of-your-seat reading at its best!
The Martian by Andy Weir
A heavily science-based novel about a man stuck on Mars. This book combines space exploration with basic wilderness survival in a fascinating and often hilarious way. If you haven’t picked this up yet, I think you should.