For example, I have to get all atractions (or something else) in a particular country. How can I know what tags to use with Overpass API query? |
Overpass supports all tags that are stored in the database. Many of them (a.o. the most commonly used) can be found on the OSM Wiki. Via TagInfo you can see which tags are used, even those that are not documented. The tag for attractions is tourism=attraction. |
Use taginfo.openstreetmap.org to explore tags: there are many thousands in use!