Casa Batlló is a famous building located in Barcelona, designed by the renowned architect Antoni Gaudí. Completed in 1906, it is known for its unique, organic shapes and vibrant colors, which reflect Gaudí's innovative style. The building features a striking façade adorned with mosaic tiles and sculptural elements that resemble natural forms. Inside, Casa Batlló showcases a series of flowing spaces and intricate details, including stained glass windows and curved walls. The design emphasizes light and ventilation, creating a harmonious living environment. It is considered one of Gaudí's masterpieces and is a UNESCO World Heritage Site, attracting visitors from around the world.