It’s strange, but thirty years ago few people knew or heard about the Sagrada Familia Cathedral. Today, this greatest creation of human hands being built today is known to every educated person. Just like the name of its creator - the brilliant architect Antonio Gaudi and his patron, philanthropist Eusebio Güell. And yet the main character of this book is Barcelona, the city where Gaudi worked, where the most outstanding modernist architects of Spain created unique buildings in the 19th century, where the foundations of world architecture of the 21st century were laid.