Summary: There are many wonderful cultural events to enjoy on other worlds.
Travelling from world to world, and to any time period he chose, meant the Doctor got to see all the great events in the universe as they happened, and there was certainly no shortage of historic moments, but sometimes it was nice to just enjoy something less dramatic, take in a few cultural events, admire the artistry and craftsmanship of various peoples.
That was why he was travelling to Bindlesneeth for the Sugar Lump Festival, where magnificent sculptures were crafted from sugar cubes.
It only happened every ten years or so, but it was a spectacle not to be missed!