The Tombs of the Ancient Kings

The Tombs of the Ancient Kings were in Calormen on the far side of the desert near Tashbaan. Shasta, Bree, Aravis, and Hwin met there after going through Tashbaan.

Summery
The Tombs of the Ancient Kings were as the their name implies: the tombs where the Calormene kings of old were buried. They looked like "big bee hives" According to Calormene fables, they are hunted by ghouls. However, Shasta slept there for a night unharmed.