Astapor

Astapor is the southernnmost of the three great city-states of Slaver's Bay and a noted stopping point for ships bound from Qarth to the Free Cities and Westeros. Astapor is home of the infamous Unsullied, eunuch slave-soldiers. Astapor's sigil, like that of the other cities of Slaver's Bay, is that of the harpy, the ancient symbol of the Ghiscari Empire, of which Astapor was once part. Though culturally still identifying itself as Ghiscari, Astapor is an independent city-state and is not officially alligned with the resurgent nation of Ghiscar to the south.

Season 2
Whilst in Qarth, Ser Jorah Mormont informs Daenerys Targaryen that he has procured transport on a ship bound for Astapor. However, Daenerys refuses to leave without having first recovered her dragons from the House of the Undying.

Season 3
Daenerys is convinced to travel to Astapor to procure the services of the eunuch slave-army known as the Unsullied. In Astapor she is nearly assassinated by the use of a manticore, but is saved by Ser Barristan Selmy, who pledges his service to her.

Notable residents

 * Kraznys mo Nakloz, a wealthy slaver who deals in Unsullied.
 * Missandei, his slave and translator, a Naathi.
 * Grey Worm, of the Unsullied.

In the books
In the A Song of Ice and Fire novels, Astapor, like its sister-cities of Yunkai and Meereen, is culturally and historically Ghiscari in origin, until the defeat of the old Ghiscari Empire by Valyria thousands of years ago. Following the Doom of Valyria, Astapor, Yunkai, and Meereen have reestablished their Ghiscari traditions, but have not (yet) joined the resurgent Ghiscari nation based at New Ghis.

Astapor is located at the mouth of the Worm River. It is ruled by the Good Masters, slave-owners and traders who have become immensely wealthy. They live on large, stepped pyramids similar to those in Meereen, but not as large. It is called "the Red City" for the red brick its buildings are made of. The city contains fighting pits and slave markets.