What is your favorite part of history to read/learn about?

Went to Antietam battlefield when I was young, there was the most overwhelming sadness that hung in the air. One of Most eerie places I've ever been.

Visited Vicksburg over the Mardi Gras holiday. The size of the memorial park itself was mad crazy. Reading some of the plaques was just overwhelming considering how long the siege lasted before Vicksburg fell.