Rusovce Mansion is a neo-Gothic manor house in the village of Rusovce, about 14 km south of Bratislava on the Danube road. The building dates from the 1840s and was constructed on the site of a much older fortification — the area is also home to a Roman military camp (Gerulata), which was part of the frontier fortification along the Danube.
The mansion has been in various states of restoration since the 1990s but retains a romantic air of genteel dilapidation. The grounds are accessible and the exterior can be explored freely. The neo-Gothic towers and crenellations are best seen from the riverside. The Atlas Obscura entry correctly describes it as a "once fairy-tale mansion now in a state of disrepair" — though restoration work is ongoing.
The Rusovce Roman camp (Gerulata), adjacent to the mansion grounds, has been partially excavated and is open to visitors. The camp was one of the most important Roman fortifications on this stretch of the Danube frontier and dates from the 2nd century AD.