HistOSM

HistOSM.org showing a selected castle

HistOSM (histosm.org) is a map showing historic information/sites. It's a WMS service run by the University of Heidelberg GIScience (Geoinformatics) Research Group

histosm.org

Features highlighted:

• Archaeological sites
• Monument
• Memorial
• Battlefields
• Ruins
• Castles
• Wrecks