Geohash is a way to encode a geographic location (latitude and longitude) into a short string of characters, which represents that location with varying levels of precision.

Geographical distance between two points on the Earth's surface.

Search the best Internet radio stations worldwide (maintained, more than 50k)

Stream info gets various metadata about the given stream (e.g., Internet radio station stream), allowing users to know more about the content (e.g., they are listening to).