Q: Fort Sumter, which played a pivotal role in the start of the Civil War, has how many sides?

A: Fort Sumter features a five-sided design. It was made from 70,000 tons of granite imported from New England.

Q: Who designed the cadet chapels at West Point and the Air Force Academy?

A: Architect Bertram Goodhue designed the West Point Cadet Chapel, which was completed in 1910 and is an example of gothic revival architecture. Architect Walter Netsch designed the Cadet Chapel at the Air Force Academy. It features 17 spires that soar 150 feet into the air.

Q: The Presidio in San Francisco, a former Army base, is considered the greatest collection of military architecture in the United States. It was designated a National Historic Landmark in 1962. What year did it cease being an active military base?

A: The base was closed in 1989, and it was transferred to the National Park Service in 1994.

Q: Who was the architect of and who built the Pentagon?

A: The Pentagon was designed by architect George Bergstrom and it was built by general contractor John McShain of Philadelphia. The building was dedicated in 1943.