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Antoni Plàcid Guillem Gaudí i Cornet (25 June 1852-10 June 1926) - in English sometimes referred to by the Spanish translation of his name, Antonio Gaudí  - was a Spanish Catalan architect who belonged to the Modernist style (Art Nouveau) movement and was famous for his unique and highly individualistic designs.
All sites for Gaudi:

Casa Batillo

1 Star2 Stars3 Stars4 Stars5 Stars (9 vote, 75.56% worth checking out)
Location: Barcelona, Spain
Architect/Designers: Gaudi

Park Guell

1 Star2 Stars3 Stars4 Stars5 Stars (8 vote, 92.50% worth checking out)
Location: Barcelona, Spain
Architect/Designers: Gaudi

Sagrada Familia

1 Star2 Stars3 Stars4 Stars5 Stars (13 vote, 90.77% worth checking out)
Location: Barcelona, Spain
Architect/Designers: Gaudi

Casa Mila

1 Star2 Stars3 Stars4 Stars5 Stars (9 vote, 88.89% worth checking out)
Location: Barcelona, Spain
Architect/Designers: Gaudi