Architectural works that were influenced by Greco-Roman architecture

Locate at least two architectural works that were influenced by Greco-Roman architecture. These can be from any period after the Greco-Roman period but should be from different periods (e.g., one from Renaissance and one from Baroque). Then address the following:
• What is the function of each structure?
• How does each work exhibit influence of the Greco-Roman period? Is the influence specifically Greek, Etruscan, or Roman – or a combination?
• How would you compare the two selected works? Take the role of the evaluative critic.