Hop on the 24 at Westminster Abbey, in the direction of Hampstead Heath. See the cathedral and the gothic church, with stained glass art and historical information. This church wa sbuilt is 1269 and can’t be beat.
You will pass Downing Street, home of the prime minister, and hip Trafalgar square. Try to catch the lion statues, and maybe pop out for a walk.
More neighbourhoods to pass include Denmark Street, known for music shops, and Camden town, vintage and rock central.
Hampstead heath is your final stop and worth a walk around.