Visitor (noun)

1. A person who goes to visit someone or something.
2. A person who visits a place for a short period of time.

Origin:

From the latin visitare, meaning "to go to see".

Examples:

1. The museum had a lot of visitors today.
2. She was a frequent visitor to the library.
3. He was a welcome visitor to our home.
4. The zoo was filled with visitors on the weekends.
5. I was a visitor in the city for just a few days.