Battle Box
Tucked into the hillside of Fort Canning is the Battle Box, the largest underground command centre of the British Malaya Command Headquarters during World War II. Comprising 22 rooms linked by a corridor, this complex is bomb-proof and also capable of recycling its own air supply.
Fort Siloso
Built by the British in the 1880s to protect the western entrance to the Singapore harbour, Fort Siloso is the only preserved British coastal fortification in Singapore today.
Johore Battery
Built by the British in 1939 for the defence of Singapore, the Johore Battery is a gun emplacement site consisting of a labyrinth of tunnels. The tunnels were used to store ammunition to support three monster guns that could fire 15-inch shells.