This is the 1200th most frequent Japanese word.
見学
Observation or inspection.
In this sentence, "見学" is used to describe the act of touring or visiting a location for observation and learning.
今日は博物館を見学しました。
Today, I toured the museum.
Here, "見学" refers to an inspection or visit specifically for observing and understanding the operations at a place such as a business facility.
事業所の見学はとても興味深かったです。
The inspection of the facility was very interesting.
In this context, "見学" is used to express the plan to visit a factory to observe its processes and workings.