This fabulous turn-of-the-century mansion was built by Thomas Walsh, an Irish immigrant who struck it rich in the Colorado goldfields. After moving his family to Washington, Walsh commissioned Henry Andersen to design a mansion befitting his vast wealth. He had made about $45 million from the sale of his Camp Bird Mine in Colorado. A balustraded terrace, a second-story loggia, ornate limestone trim, bay swells and a red-tiled mansard roof adorn the tan brick exterior of the mansion. The arched double doors of the entrance portico open onto a sumptuous hall three stories high and topped by a stained-glass skylight. In the Louis XVI drawing room, rose damask walls are embellished with gilt and white pilasters and arched woodwork. The adjoining music room contains dark mahogany wainscoting and trim