Glover Garden is a park in Nagasaki, Japan. In it stands the Glover Residence, the oldest Western style house surviving in Japan and Nagasaki's foremost tourist attraction. It is located on the Minamiyamate hillside overlooking Nagasaki harbor. It was built by Hidenoshin Koyama of Amakusa island and completed in 1863. It has been designated as an Important Cultural Asset. As the house and its surroundings are reminiscent of Puccini's opera, it is also known as the "Madame Butterfly House."