1. León Cathedral, also known as The House of Light or Santa Maria de León Cathedral, is a stunning example of French Gothic architecture located in the city of León, Spain. Built in the 13th century, the cathedral is known for its intricate stained glass windows, elaborate sculptures, and soaring vaulted ceilings. One of the most interesting facts about the cathedral is that it features some of the most well-preserved medieval stained glass windows in Europe, with over 1,800 square meters of colorful glass dating back to the 13th century. Another fascinating feature of the cathedral is the Botines de San Isidoro, a set of decorative bronze figures that mark the positions of stars in the night sky as they appeared on the day the cathedral was consecrated.

2. León Cathedral is open to visitors daily, with varying hours depending on the season. It is recommended to check the official website or contact the cathedral directly for the most up-to-date information on opening hours. Unfortunately, a phone number for the cathedral was not provided.

3. Admission to León Cathedral is usually free for visitors who wish to attend Mass or visit the main altar. However, there may be a fee to visit certain areas of the cathedral, such as the cloister or the museum. As for transportation, the cathedral is conveniently located in the center of León and is easily accessible by public transportation or on foot. Additionally, there are several parking options nearby for those arriving by car.