Complex sentence: When it went on display at the Tang Teaching Museum and Art Gallery, visitors clandestinely nibbled off bits and pieces of the cabin's interior walls, while the smell of the gingerbread filled the gallery.
Split into simpler sentences: When it went on display at the Tang Teaching Museum and Art Gallery, visitors clandestinely nibbled off bits and pieces of the cabin's interior walls. And the smell of the gingerbread filled the gallery.