At the edge of the Beaufort Sea off the north coast of Canada's Yukon Territory, Herschel Island was first inhabited a millennium ago by the Thule—ancestors of the present-day Inuit.
The towering mud-brick walls of the three fortresses at Ayaz Kala, located in the Khwarezm region of Central Asia (modern Uzbekistan), rise dramatically from the surrounding plains.
Richhill House was designed in a Renaissance style, with two large "Dutch" gabled and pedimented wings, with dormers in the same style, and paneled chimney stacks.
Stretching along the Golden Horn to the Sea of Marmara, the fortified walls of Istanbul protected the city from the early Byzantine period to the fifteenth century.
Built in the late sixteenth or early seventeenth century during Ottoman rule of Ankara, this han, or caravanserai, was designed to accommodate traveling merchants.