Capitol of Tennessee
Designed by Philadelphia architect William Strickland, who modeled it after a Greek Ionic temple. The building was constructed over a period of 14 years from 1845 to 1859. The architect is buried in the northeast wall.
It is considered the Second oldest continuously operating State Capitol (or first depending on who you ask). The Oldest is the Vermont State Capitol, which has a different type of architecture but is also modeled after greek architecture. Both opened in 1859.