The Santiago de Compostela Cathedral, located in Galicia, is one of the most important pilgrimage destinations in the Christian world. It marks the traditional end of the Camino de Santiago (Way of St. James) pilgrimage route and is believed to house the relics of Saint James the Great, one of Jesus Christ's apostles.

The Santiago de Compostela Cathedral has been a major pilgrimage site for centuries, drawing millions of pilgrims from around the world. It is also a UNESCO World Heritage Site, recognized for its historical and architectural significance.

The initial church on the site was built in the 9th century, following the discovery of what were believed to be the remains of Saint James in the early 800s. King Alfonso II of Asturias commissioned the first church.

The current Romanesque cathedral was constructed starting in 1075 under the reign of Alfonso VI of León and Castile, with the main structure completed by 1211. It was consecrated in that year by King Alfonso IX of León.

Over the centuries, the cathedral underwent numerous additions and modifications, incorporating Gothic, Renaissance, Baroque, and Neoclassical elements.

• The original design of the cathedral is predominantly Romanesque, characterized by its robust, heavy structure, rounded arches, and thick walls.

• The Obradoiro façade, completed in the 18th century, is a masterpiece of Spanish Baroque architecture. Designed by Fernando de Casas Novoa, it features intricate stonework and dramatic ornamental elements.

• One of the cathedral's most celebrated features is the Portico of Glory (Pórtico de la Gloria), a Romanesque portico completed in 1188 by Master Mateo. It is renowned for its detailed and expressive sculptures, depicting Biblical scenes and figures, including a statue of Saint James.

• The interior of the cathedral is vast and awe-inspiring, with a high nave, impressive vaults, and richly decorated chapels. The high altar is particularly notable, featuring a Baroque baldachin and an elaborate statue of Saint James.

• One of the cathedral's unique elements is the Botafumeiro, a giant thurible (incense burner) used during certain liturgical ceremonies. Suspended from the ceiling, it swings dramatically across the transept, filling the cathedral with incense.

• The cathedral's crypt houses the silver reliquary allegedly containing the remains of Saint James. Pilgrims traditionally visit the crypt to pay their respects.

• The cathedral complex includes beautiful cloisters and a museum that exhibits religious artifacts, artworks, and historical objects related to the pilgrimage and the cathedral itself.