Paragraph 1: Introduction, last sentence
of which should be your thesis statement. You thesis statement should
very briefly summarize the information in paragraphs 2, 3, and 4.
Paragraph 2: History of the building, including who designed
and constructed it, where it was built, when it was built, etc.
Paragraph 3: How is the building used today? Why is it
important or unique? Is it a tourist attraction or something else?
Paragraph 4: Why is a sound knowledge and understanding of
geometry important in architecture?
Paragraph 5: Conclusion: First sentence of conclusion
should restate your thesis statement.
Citations: You must have a bibliography. You might want
to try Citation Machine.
Detailed instructions for the written paper can be found here.