Greenwich Foot Tunnel
Built in 1902, this 370-metre pedestrian tunnel runs beneath the Thames, connecting Greenwich to the Isle of Dogs, and its long straight corridor is one of London's most compelling architectural interiors to photograph. The tunnel's white tiled walls, curved ceiling, and single vanishing point create a natural leading line that draws the eye deep into the frame; position yourself low and central to maximize the compression effect and symmetry. A wide angle lens works well here, somewhere around 16 to 24mm, and you will want to shoot during quieter hours, early morning on weekdays or late evening, to avoid foot traffic interrupting your compositions. The lighting is entirely artificial, so bring a tripod or be prepared to push your ISO. The entrance rotundas with their green domes are worth shooting too, especially from across the road to include the full dome in frame. (London, England)
