General Land Office Building - Credit: Wikimedia Commons
The General Land Office Building, completed in 1857, in Austin, Texas is the oldest surviving state government office building in the city and the first building designed by a university-trained architect (German architect Christoph Conrad Stremme). The building features a dramatic medieval castle style known as Rundbogenstil, or "rounded arch" around the windows and doors. There is also a Norman style influence in the castle-like parapets. The exterior walls are limestone rubble smoothed over with stucco and scored to simulate cut stone blocks. Read more on Wikipedia
Source: en.wikipedia.org