Three days of setting up the exhibition in one video.
To make the event last longer and to attract others to visit the exhibition, it is important to stay in touch with the audience after the opening event. It keeps reminding them the exhibition, they talk about it (hopefully in social media) to their friends and help to advertise it.
Great ways to keep the exhibition going is to share photos and videos captured during the event. Timelaps of building the exhibition is a great “after the event” post to share.