Whitelocke went to Wrangel's lodging to requite his visits, but found him not at home, not having sent beforehand to him. He fetched a little turn in the city, and they showed him a new building for the Ricksdag, which they call the Ruder-house, that is, the house of the Knights; it is a fair building, and the name of it remembers somewhat of the knights of our Parliament. In this walk, Whitelocke viewed in the fair street near his lodging the monument set up to the honour of Queen Christina at her coronation, which is beautiful to the view. It is a triumphant arch, of the height of the highest houses, raised upon three arches, which give three passages; those on each side the more strait and low, the middle arch of twice the height and wideness of the other two. The frontispiece unto the tops of the arches is adorned with pillars of a fair work, between which, in the front of the building, are figured the wars, battles, and victories of Gustavus the Great: above the pillars are divers images, and above the middle of the porch is a large tablet, containing in letters of gold the original of Christina, her virtues, and the occasion of this monument. The whole building seems fair and stately, and as of stone, but in truth is only wood plastered over; rather a show, to please for a few years, than lasting. He also viewed many houses of stone and brick, some whereof were very fair and adorned with towers and figures, as those of Grave Magnus de la Gardie, Grave Gustavus Horne, General Bannier, and others, and many of them beautifully covered with copper. In the afternoon Wrangel conducted Whitelocke to see the castle, which is also covered with copper; and that having lain there long, some Dutchmen are reported to have offered to give L10,000 for the copper, and to cover the castle again with new copper; the reason whereof they hold to be, because the copper which hath lain there so long with the sun upon it, is so refined thereby, and would yield so much gold, that it will yield what the Dutchmen bid for it and more, besides the charge of new covering it with copper as before.