Post date: Aug 23, 2010 3:44:27 PM
The palace Indy visits in Istanbul 1918 ("Masks of Evil") is Topkapi Palace in Istanbul. The ornate hall he enters is the Imperial Hall, likely built in the 16th century.
Coordinates:
41° 0′ 46.8″ N, 28° 59′ 2.4″ E