Based on extensive ethnographic research, this book delves into the thriving industry of religious infrastructure in Romania, where 4,000 Orthodox churches and cathedrals have been built in three decades. Following the construction of the world’s highest Orthodox cathedral in Bucharest, the book brings together sociological and anthropological scholarship on eastern Christianity, secularization, urban change and nationalism. Reading postsocialism through the prism of religious change, the author argues that the emergence of political, entrepreneurial and intellectual figures after 1990 has happened ‘under the sign of the cross’.