Casa Milà, also known as La Pedrera, 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 undulating stone facade and wrought-iron balconies, showcasing Gaudí's innovative approach to architecture. The structure is a UNESCO World Heritage Site and features a rooftop with chimneys that resemble warriors. Inside, visitors can explore various apartments and exhibitions that highlight Gaudí's work and the history of the building. Casa Milà remains a significant example of Modernisme architecture.