I took this pic at Fort Siloso in Sentosa island, Singapore. Situated in Sentosa island, the fort was built to protect against sea invasion from the sea. The fort played a very important role in World War II. It is a well preserved building with a lot of underground chambers. This pic was taken in one of the alleys. I love the tunnel like effect and the light at the end of it. It was rather stark in color so I converted it to monochrome.