**City name**. *Example: London*. You can call by city name, or by city name and country code. The API responds with a list of results that ...

**City ID**. *Example: `2172797`*. You can call by city ID. The API responds with the exact result. The List of city IDs can be downloaded [...

**Latitude**. *Example: 35*. The latitude coordinate of the location of your interest. Must use with `lon`.