WINDSOR CASTLE: STAIRS OF THE ROUND TOWER.
The Round Tower, or Keep, is at once the most conspicuous and one of the most interesting buildings at Windsor Castle. Our picture shows a bit of the staircase, commanded by a gun - a not unnecessary precaution when prisoners were kept in the Keep, and the tower was really of service as a fortress . Above the gun will be seen the lamp that lights the stairs.
THE GREAT WHEEL AT EARL'S COURT.
The Great Wheel at Earls Court is an enlarged copy of the one at the Chicago Exhibition. It is three hundred feet high, and is made entirely of steel, on the tension principle. It is furnished with forty cars, holding altogether sixteen hundred people, and the journey round occupies twenty minutes. The motive power is supplied by two 50-horse power electric motors.
source: The Queen's London : a Pictorial and Descriptive Record of the Streets, Buildings, Parks and Scenery of the Great Metropolis, 1896