noun, noun which may take the genitive case particle 'no'
inside the building; on the premises
Used for the interior of a public facility such as a library, museum, cinema, or hall. Often appears in signs and announcements.
館内では飲食をご遠慮ください。
Please refrain from eating and drinking inside the building.
館内案内図は入口の右側にあります。
The floor guide is on the right side of the entrance.
Smoking is not permitted on the premises.
A staff member showed us around the building.