Sir Sidney McSprocket introduces us to Great British minds, J Harrison and Oluwaseyi Sosanya - both of whom used their curiosity to improve on an existing design.

A Garden to the Guildhall: a free Time Hunters history walk around the City of London
44:19

A Bridge to the Barbican: a free Time Hunters history walk around the City of London
50:06

The Great Fire Trail: a free Time Hunters history walk around the City of London
1:02:38