Where is the National Monument known as McLear's Beacon, first established in 1844 and still used as a triangulation station by cartographers?
Which section of the British forces made a famous charge against Russian forces at Balaklava on 25 October 1854 during the Crimean War?
The iron pillar of Delhi, India, a 7.21 m (23.7 ft) high pillar that is 98% pure wrought iron, has withstood corrosion in the open air for how long?
