They are names. All names of all things (people, cities, towns, counties, states, countries, buildings, monuments, rivers, mountains, lakes, oceans, streams, natural disasters, books, plays, magazines, articles, songs, works of art, etc.) are nouns.
They are names. All names of all things (people, cities, towns, counties, states, countries, buildings, monuments, rivers, mountains, lakes, oceans, streams, natural disasters, books, plays, magazines, articles, songs, works of art, etc.) are nouns.