A map of Massachusetts Bay and Cape Cod showing the area of early Norse exploration in America. "In 986 A.D. a Norseman named Herjulfson, who was voyaging from Iceland to Greenland, was driven by a gale far out of his reckoning to the W....

This is a plan of the church of San Ambrogio, Italy. This is an example of Italian Lombard Romanesque architecture. This church represents the "earliest [example] of the solution of the great problem which was exercising the minds of the...

This is a plan of the San Michele, Pavia, Italy. This is an example of Italian Lombard Romanesque architecture. This church represents the "earliest [example] of the solution of the great problem which was exercising the minds of the...