Rise of the Persian Princes.

The article focuses on four-story-tall gate were statues of lamassu, winged bulls with human heads and curly beards. It mentions great city was founded by the Persian king Darius I around 518 b.c. in present-day Iran and construction continued for nearly 200 years and 45,000 residents nourished by surrounding orchards and farmlands. It also mentions walls would have glowed from the hues of glazed tiles, murals, and inlaid gold, silver, and precious minerals.