GUATEMALA
Excluding my own country, I know the most about Guatemala. I will limit my sharing of that knowledge to three facts:
1-Guatemala City is the largest in Central America.
2-The country is home to the ancient Maya civilization.
3-It shares a common border with the most countries in the region*
Not to mention the capitals of all 7 countries, I know at least one thing about each, but I will allow others to be the first to share their knowledge of a given fact.
*Belize, El Salvador, Honduras and Mexico.