La Pedrera, also known as Casa Milà, is a famous building located in Barcelona, Spain. Designed by the renowned architect Antoni Gaudí, it was constructed between 1906 and 1912. The building is known for its unique wavy stone facade and innovative use of ironwork. It is a UNESCO World Heritage Site and a prime example of Catalan Modernism. Visitors can explore the rooftop, which features surreal chimneys and offers stunning views of the city. Inside, the building houses an exhibition dedicated to Gaudí and his work, showcasing his artistic vision and architectural techniques.