NARRATOR: These stones will form the main building blocks of the castle. The quarried stone is destined for the ... come to the tracing floor where they'll be planning a limestone spiral ...

“The availability of large quantities of stone was an important element in the construction of and appearance of the Castle. Found in abundance in Waltham, the particular type of glacial stone, called ...

A 400-year-old stone wall once part of Edo Castle, discovered only last year at what is now the Imperial Palace in Tokyo, is likely the castle’s oldest existing remnant ever unearthed ...