A lighthouse on the top of a 25-storey apartment block, a unique rocky area that looks like Guilin in China, the remains of a Shinto shrine built in the jungle by prisoners of war, houses from the Ming and Qing periods donated by Jackie Chan, the bottoms of soya-sauce bottles used to decorate the Sultan Mosque, the “leaning tower” of Singapore, the last remaining stretch of natural beach, a forgotten bomb shelter under a national monument, the beautiful modernist door of a former biscuit factory, a hidden kampong (rural village) dwarfed by residential towers, the splendidly preserved old Changi prison gates, the stately Masons Hall inside the Freemasons' headquarters …