Chris Burns from Bangkok sent us this photo he took of a manic looking spider's web:

"I took the photo of the spiders web in a 'hospital' cave on the Death Railway at Kanchanaburi in Thailand, home to the bridge on the River Kwai. Given the location the grinning skull image seemed fairly appropriate - my understanding was that the majority of the men taken to the hospital caves died there of malnutrition, malaria or some other tropical disease."