An application to ‘browse’ the information in the displayed part of the map. Similar to common Wikis and also the main page of http://www.openstreetmap.org the website shows a narrow menu on the left side, most of the page is used for the display of the map. In contrast to most Wikis the menu is not static, but rather the content of the map can be browsed in categories. For the map a special style has been developed (sorry guys, I neither like the default Mapnik nor Osmarender styles), and special overlays are displayed to support the current browsed categories. When you click on an object (either from the list or directly on the map) informations on this object are displayed.
My mistake. I had it in the query from z14 to z15, but not from z16 on. Fixed in plepe/openstreetbrowser-categories-main@26c1b5e04641b9afad20535dd6a7e13c100becb9
This language school (https://www.openstreetmap.org/way/545262824) is not listed under "Education".
See: https://openstreetbrowser.org/#map=20/-23.04475/-47.83469&categories=education