The names of cities, states, provinces, and countries begin with a capital letter.
The names of streets, parks, lakes, rivers, and schools begin with a capital letter too. The abbreviation of the words street (St.), road (Rd.), and drive (Dr.) in a place name begin with a capital letter.

I want to visit Paris one day.

Alaska is the largest state in America.

British Columbia has a lot of beautiful forests.

Monaco is one of smallest countries in the world.

I live on Princes St.

We are driving on Lincoln Rd.

Keukenhof Park is a peaceful place to read.

The Caño Cristales River is also called the Rainbow River.

Maple Hill Elementary School is doing a project on fresh fruits and vegetables.