Journey to the Abyss: The Diaries of Count Harry Kessler 1880–1918

I am about halfway through Journey to the Abyss: The Diaries of Count Harry Kessler 1880-1918. Kessler was an extremely well-traveled and well-connected person and his diaries follow him through ±1900-era Mexico, Japan, India, and then back in Europe amongst figures like Rodin, Nietzsche, Verlain, and others. It's a super interesting read if you're interested in turn of the century art and culture, and also for a behind-the-scenes look at the German upper class perspective of World War I.