Royal Residence in Potomac, MD, for $3.1M

Records indicate, however, that an elegant property in this Washington, DC, metro community belongs to the Crown Prince  Reza Pahlavi. The home was last purchased in 1996 for $1.25 million, and the prince has reportedly been caring for and renovating it ever since. The surprisingly understated, gated compound includes a seven-bedroom, 7.5-bath, stone-and-brick clad, Georgian-style main house, as well as a large carriage house with parking and living accommodations.