Before The National Gallery, a gigantic Georgian stable complex stood here, tending to the needs of over 200 royal horses and housing dozens of workers. The King’s Mews was at the heart of one of the biggest urban horse populations in the world and an equestrian craze that gripped an entire nation.

Too often overlooked as an industrial pilgrimage site, it was here that muscle power, horse and human, combined with steam to propel beer into the modern age.

Two strips of land running either side of the Turnmill Brook between Farringdon and Clerkenwell provided an ideal spot to fatten pigs in the 18th century. Some considered them a filthy nuisance, others valuable recycling machines. This place takes us to the heart of that conflict. Wellies recommended.

An old, narrow footbridge stars in Patrick Keiller’s film, Norwood, as a border – perhaps between the lands of the living and of the dead.