In the nineteenth century, when they weren't busy looting the parthenon they were making plaster casts of parts of it. These Frankenstein reconstructions are on display at the Carnegie Museum.
The original Choragic Monument of Lysicrates is in Athens. Choragic has the same root as choreography, chorus; choro; dance. Lysicrates taught a boys' chorus and won some ancient Greek competition.
The architectural significance is this is the first use of Corinthian columns: thoe floral capitals at the top rather than doric slabs or ionic tablets. And the proportions of the whole are quite elegant.
It looks even more grandiose with the lights turned on, see here:
This 200 year old diorama "The Neapolitan Presepio" is inset in the Giles plaster cast. The background painting is contemporary by a local artist.
Fondest memory: "A trip to see the Neapolitan Presepio, one of the finest miniature Nativity scenes of its kind, is a Pittsburgh holiday tradition. More than 100 figures, created between 1700 and 1830 by Italian craftsmen, represent the Neapolitan concept of the Nativity in a richly detailed panorama of 18th-century Neapolitan village life."