1991 05 008b photo 12 months 0 Thames Barrier photo 12 months 0 Thames Barrier photo 12 months 0 1991 05 008c photo 12 months 0 Thames Barrier interior photo almost 3 years 0 Thames Barrier interior photo almost 3 years 0 Thames Barrier interior photo almost 3 years 0 Thames Barrier interior photo almost 3 years 0 Thames Barrier interior photo almost 3 years 0 Thames Barrier interior photo almost 3 years 0 Thames barrier skyline panorama photo over 3 years 0