For 10 points, name this ancient city, the capital of the Achemenid empire located in modern-day Iran.
One building located in this city had entrances guarded by pairs of colossal bull statues, some of which are found at the Art Institute of Chicago. A lion and a bull fighting each other is shown on the side of a 110-step Grand Staircase located here, which is divided into two halves for domestic and foreign dignitaries. Excavated by Erich Schmidt and Ernst Herzfeld, this place is home to the Gate of All Nations and the (*) Hall of 100 Columns. A capital depicting a double-headed griffin is located at the ruins of this site, which also contains the Apadana palace, whose base is decorated with carvings of the Immortals. A necropolis located 12 kilometers northeast of this city contains the tomb of Darius I, who oversaw the building of this city. For 10 points, name this ancient city, the capital of the Achemenid empire located in modern-day Iran.
One building located in this city had entrances guarded by pairs of colossal bull statues, some of which are found at the Art Institute of Chicago.
Persepolis [or Takht-e-Jamshid]