Ajax Maps is an extension for the TYPO3 CMS. It allows to show a map with locations. Display can be filtered interactivly by type, region and categories. Categories are shown and selected in a tree view. The map view is highly configurable. Regions are defined by KML files. They are displayed as map overlays an can be switched on/off in frontend.  See also: https://forge.typo3.org/projects/extension-ajaxmap