In the Middle Ages, Burgos was surrounded by a massive stone wall with twelve magnificent gates. It ensured the safety of the city and its steady development. However, similarly to other European cities, over time, it was demolished and its stones were used to build houses and other architectural constructions. Nevertheless, some fragments of the ancient wall have survived to this day. The most impressive one is St. Mary’s triumphal arch.

Once, the picturesque gate was the main entrance to the former Castile capital. Today, it solemnly greets pilgrims and visitors of Burgos Cathedral. Also, the arch serves as a link between St. Mary’s Bridge across the River Arlanzon, and the city’s St. Ferdinand's Square.

Due to it being the oldest and the most beautiful gate in the city for over 7 centuries, St. Mary’s Arch became one of the most visited and iconic monuments of Burgos. Experienced travellers recommend admiring this landmark at sunrise or sunset because there aren’t as many tourists as there are during the day, and golden rays further highlight the experience.

St Mary’s Arch, the way we know it today, appeared in the 16th century when Charles V, Holy Roman Emperor, ordered to remodel it after famous European triumphal arches. Experienced Spanish architects and sculptors, Juan de Valiexo and Francisco de Colonia, were in charge of the renovation. In their art, the masters actively combined Gothic, Plateresque and Italian Renaissance elements, which was reflected in the appearance of their collaboration. The arch was decorated with sculptures of remarkable historical figures and the city’s patrons, created by Ochoa de Arteaga.

Aside from its exterior decoration, visitors can admire its interior spaces. The greatest points of interest are the Main Hall and the Equality Hall decorated in the Mudejar style. Today, the interior spaces of St. Mary’s Arch in Burgos are used for temporary exhibitions, and one of the spaces houses the unique Pharmacy Museum.