The discussion revolves around a photo contest themed around places of worship, including churches, mosques, and synagogues. Participants are encouraged to submit one digital photo that adheres to specific rules, such as size limitations and minimal editing. The contest emphasizes originality, requiring that all submitted images be taken by the participants themselves. Throughout the thread, members share their entries, discuss the locations of their photographs, and engage in light banter about similar images and experiences. There are also conversations about the technical aspects of photography, including camera settings and editing techniques. Some participants express nostalgia and personal connections to the locations depicted in the photos, while others comment on the beauty and architectural significance of the places showcased. The thread highlights a sense of community and appreciation for photography and cultural heritage.