Take a look at how the town has changed over the years - and see if you can work out what has replaced the historic scenes.
1.
This lovely view was taken in the 1930s or 40s. But what is here today? Photo: Hemel Hempstead Local History and Museum Society
2.
It's Hemel's (in)famous 'magic roundabout' - also known as The Plough Rounabout. Photo: Hemel Hempstead Local History and Museum Society
3.
You can spot a farm and a factory in this view - but what's on this site today? Photo: Hemel Hempstead Local History and Museum Society
4.
The clue was there - it's the Woodhall Farm housing estate. Photo: Hemel Hempstead Local History and Museum Society