The Old Stone House was built in 1765 and is the oldest unchanged building in Washington, D.C. The house is also Washington's last Pre-Revolutionary Colonial building on its original foundation. Unlike many Colonial homes in the area, sentimental local folklore preserved the Old Stone House from being demolished.
The Old Stone House was constructed in three phases during the 18th century and is an example of vernacular architecture. During its history, the house was started as a one-story building and gradually became a used car dealership later. After a renovation in the 1950s, the Old Stone House was turned into a house museum.
The Old Stone House stands among the neighborhood's stores and restaurants as an example of local history for tourists, shoppers, and students. Today, the home is 85% original to its 18th-century construction.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.