That would be a proper noun. For example: Selena is at Big Ben. The words with capital letters are called proper nouns.
a person , place or a thing that has a special place in someones heart.
a person and a thing
A person is connected to a special place because they think special moments about their lifes or childhood memories
A memorial is a place that honors a person, event, or thing.
A noun is a word that represents a person, place, thing, or idea.
thing
Yes. (person, place or thing & it IS a thing)
Place
A namesake is when a person, place, or thing is named after another person, place, or thing.
Sunscreen is a noun, it is a thing, not a person or place. A noun is a person, place or thing.
The word "week" is a concept or unit of time, not a person, place, or thing.
It can be called a place and thing.