Look up high in Fleet Street. You can still see the London smog clinging to the stones. Look closely at the old Daily Telegraph HQ (at no.135, it's the building that looks like it is auditioning for a starring role in Batman's Gotham City). You can just about read the newspaper's masthead spelled out in silhouette by the grime of the years. Fading with every passing year, but still there.
Fleet Street is London's most rewarding street in which to lift your head above the traffic and homogenous shops. It's all in the detail.