Five "Homes" or "Palaces" that are mentioned in anthem

The Palaces and Buildings are so as follows:

Explanation:

The Home of the Street Sweepers

The Home of the Scholars,

The Home of the Infants,

The Home of the Students

The Home of the Useless

The Palace of Mating

The Palace of Corrective Detention

The Theater

The Home of the Peasants.

I think these are all the major buildings: Home of the Street Sweepers, Home of the Scholars, Home of the Infants, Home of the Students, Home of the Useless, Palace of Mating, Palace of Corrective Detention, the Theater, and the Home of the Peasants.