Throughout this essay I am going to talk about the main works of Antonio Gaudi and Charles Rennie Mackintosh whilst comparing and contrasting them, with singular reference to the respective influences and examples used in their approach to design.
Antonio Gaudí, (1852, Reus, Spain—1926, Barcelona)
Antonio Gaudi was an outstanding character of Spanish architecture in the nineteenth century and was one of the most original architects of the period Art Nouveau was Antonio Gaudi. 
Antonio Gaudi was a Catalan architect, with a distinctive style that is branded through the means of freedom of form, through voluptuous colour, texture and organic harmony.
Gaudí’s elegance of architecture went from end to end in a number of phases. On development from the Provincial School of Architecture in Barcelona in 1878, he experienced a rather elaborate Victorianism that had been unmistakeable in his school projects. He quickly developed a manner of composing by means of extraordinary comparisons of geometric multitudes, the surfaces of which were highly animated with decorative brick or stone, ceramic tiles and floral or reptilian metalwork. The general effect, although not the details, is Moorish—or Mudéjar, as Spain’s distinctive mixture of Muslim and Christian design is called.
El Capricho (1883–85)
Church of the Holy Family,
Templo Expiatorio de la Sagrada Familia (1882 –Present)
The temple of the holy family is still slowly and painfully being added to in the city of Barcelona. By 1883 Gaudi had completed the crypt and the outer walls of the chevet, according to Francisco del Villar’s designs. Villar was the designer of the Sagrada Familia.
After the beginning of the construction Gaudi developed his own design, the part that was built before 1914 was the façade to one of the transepts which includes the triple door way and four towers shown on Fg.2. Inspired by working in Montserrat and fascinated by the formation of the mountain peaks rising vertically, like the monastery stands above Barcelona. The Sagrada Familia was continued after an interval because of the World War. However, Antonio Gaudi died in 1926 so construction stopped. In addition, work is now fully in progress. Such vast enterprise will ever attract sufficient funds to be completed must be in doubt. However, it is to be hoped that the Sagrada Familia will be finished. The design is unique, non-eclectic design and it’s the greatest ecclesiastical structure since the eighteenth century.
The building finished so far, through appearing large, (the towers are 330 feet high), and still is only a portion.
It represents one transept façade and the outer choir chevet walling. Still remaining to be built are the nave and the other transept, with similar towers, the choir cimborio whose tower should rise to about 560 feet, higher than the tallest medieval church in Europe. 
Casa Batlló (1904–06)
The architect opted to preserve the original structure and concentrate his efforts...