Saint-Jacques Tower stands as a striking example of Gothic architecture in Paris. Located in a square about 150 meters west of the Hôtel de Ville, the tower is all that remains of the former Eglise Saint-Jacques-de-la-Boucherie. The original church was an important landmark for centuries, but today, only this beautifully restored tower remains.
During medieval times, the tower served a special purpose. It was the main meeting place in Paris for pilgrims preparing for the long journey to Santiago de Compostela in Spain. The pilgrimage route, one of the most famous in the world, drew people from all over Europe who gathered here before setting out.
The renowned architect Ballu restored the Saint-Jacques Tower in the 19th century, helping to preserve its elaborate Gothic details for future generations. Today, its historical significance is widely recognized. The tower is included on the UNESCO World Heritage List as part of the Routes of Santiago de Compostela in France, celebrating its role in the history of pilgrimage and its remarkable architecture.
Source - https://en.wikipedia.org/wiki/Tour_Saint-Jacques