The Historical Marker Database

I recently stumbled upon this site and have enjoyed using it to discover historical markers in my area and explore ones from other cities. Some examples:

- "Baseball in civil war Nashville": https://www.hmdb.org/m.asp?m=160531

- "Louisville Wharf during the civil war years: https://www.hmdb.org/m.asp?m=104311

- "Battle of Fort Dearborn": https://www.hmdb.org/m.asp?m=67806