18 of the Most Unique, Strange, Unusual Houses Ever Built

11.The Urban Cactus, Rotterdam, Netherlands

UCX Architects designed this rather amazing apartment building as an example of making the most of alternating patterns to allow more sunlight for outdoor spaces in future community housing. With 98 residential apartments and 19 stories, the unusual design allows each apartment access to sun, both on the garden petal and some of the interior. The project was designed to allow green space with residency near the Vuurplaat Harbour, as well as excellent city views. Construction of the building began in 2006.