The former house of William J. Alt and family has been designated an Important Cultural Asset by the Japanese government and is preserved today on its original site (now part of the Glover Garden complex). Built from stone (the pillars were imported from Italy), the house was used for only five years by the Alt family and saw a colorful variety of uses over the following years. In 1903 it became the property of the Ringer family, who resided here up to the outbreak of World War II. Damaged by the atomic bomb, the building served for many years as a tenement house before being purchased by Nagasaki City in 1970, refurbished, and opened to the public as part of Glover Garden.
