Condé Nast Traveller takes a one-day tour of the City of London. Join our photographic director Matthew Buck and chief sub-editor Gráinne McBride as they plan their itinerary around a completely empty St Paul’s Cathedral, a legendary brutalist building, a café selling the UK’s first compostable coffee pods and an excellent chophouse. The pair discover a new perspective of the capital’s City-within-a-city.