What is the speaker talking about?

The last gallery we are going to visit today is the city’s newest. You will notice that the construction of this building is unique.  This is because this building is the only purposely built sculpture gallery in the state. Originally, all of the sculptures in this building were kept in the City Gardens. However, because of the effects of weather and the danger of damage, the City Government decided to build this gallery to house 250 of the world’s most important sculptures.  Let’ s make our way inside and see what all the fuss is about.