The Church of the Holy Spirit stands as a testament to Heidelberg's rich history, attracting 1–3 million visitors each year. This architectural marvel, nestled in the heart of the old town's marketplace, showcases the transition from Romanesque to Gothic styles, a construction journey that spanned over a century from 1398 to 1515. It has witnessed numerous historical events, including the tumultuous changes of denominations and the destruction and restoration of its structure. Today, it continues to be a significant site for both worship and history, reflecting the enduring spirit of the city.