This modern house is located in Warsaw, Poland. It looks like a fortified castle, but was built using materials and shapes that normally characterize modern architecture. When the owner is not at home, the house appears to be a bunker with no windows or doors. Although upon entering the main gate the house turned into something completely different. Everything opens up and it becomes a luxury residence with an indoor pool suitable for a vacation-like lifestyle. The interior is also modern and minimalist, but comfortable enough.