Thorncrown Chapel. Eureka Springs, Arkansas. 1980 / E. Fay Jones "This magnificent wooden structure contains 425 windows and over 6,000 square feet of glass. It sits atop over 100 tons of native stone and colored flagstone, making it blend perfectly with its setting." The chapel is "on the U.S. Historic register, has been named one of the AIA’s top ten buildings of the 20th century, and has even been called the best American building since 1980."