I was very impressed by examples of the Roman underfloor heating. I tend to think that we are very civilised and advanced today, but the fact that the Romans had underfloor heating puts that view into a bit of perspective.
I couldn't help being reminded of quilt blocks by some of the mosaics.
The gardens were lovely too. There was a large Mediterranean-style formal garden with clipped box hedging, like a parterre. This had been re-planted to it's original plan as recovered by excavation.
My favourite part of the garden was the herb garden. Here there was selection of culinary and medicinal herbs representing some of the plants the Romans would have cultivated.