Churches have long been a staple of tourist visits, drawing visitors regardless of the weather. Among the many features that attract visitors, stained glass windows stand out as both artistic masterpieces and historical artifacts. These windows often tell stories from religious texts, use vivid colors, and allow light to create dynamic visual effects inside the church. Their creation often involved skilled artisans and can date back centuries. One of the earliest known examples of stained glass is from the 6th century, found in a church in Syria. These early windows were simple in design, using colored glass to depict religious symbols. Over time, the craft evolved, especially during the Gothic period in the 12th century, when larger windows became possible due to advancements in architecture and glass-making techniques. A famous example is the stained glass in Notre-Dame de Paris, which was severely damaged in a fire in 2019. The windows, created by artists like Jean-Claude and Armand Dufour, were renowned for their intricate details and vibrant colors. Restoration efforts are ongoing, aiming to restore the windows to their former glory. Similarly, the Cologne Cathedral in Germany is home to some of the largest and most impressive stained glass windows in Europe, with some panels measuring over 10 meters in height. In the United States, St. John the Divine in New York City is known for its massive stained glass windows, some of which were completed in the early 20th century. These windows depict scenes from the Bible and are a testament to the continued relevance of stained glass in religious architecture. Meanwhile, in Japan, the Hōryū-ji Temple features some of the oldest surviving stained glass in the world, dating back to the 7th century. These windows are more than just decorative; they reflect the technological, artistic, and spiritual values of their time. Whether in Europe, Asia, or the Americas, stained glass windows continue to captivate visitors and offer a glimpse into the past through light and color.