This is by far the craziest house I have ever seen. Trassenheide, Germany — A businessman who put up a house in Germany upside down, with its gabled roof poking into the soil, said it was intended to be “an experiment for the senses.” Polish-born Klaudiusz Golos said he would admit visitors to the extraordinary building from Thursday onward. It has been erected among other, more normal-looking private homes at Trassenheide...