A common noun names a non-specific place. Common nouns are never capitalized within a sentence.
Here are some common nouns that name a place:
school, home, store, playground, museum, kitchen, city, country, state, office, train station, neighborhood
A word that names a non-specific place is a common noun. Do not capitalize a common noun.
It’s your turn. Find the common noun in this sentence that names a non-specific place. Dad took me to his office on Saturday. Did you find the place? Good for you!