The Cathedral of Barcelona, also known as the Cathedral of the Holy Cross and Saint Eulalia, is a stunning example of Gothic architecture located in the heart of Barcelona, Spain. Construction began in the 13th century and was completed in the 19th century. The cathedral features intricate facades, beautiful stained glass windows, and a serene cloister. Inside, visitors can explore the main altar, chapels, and the tomb of Saint Eulalia, the city's patron saint. The cathedral's bell tower offers panoramic views of Barcelona, making it a popular destination for tourists and locals alike.