I've said before that the refurbished Ashmolean is one of the most beautiful and exhilarating museum spaces I've ever seen: on a smaller scale, the Garden Museum is now another. The fact that it's set in a church building complete with monuments, stained glass, and even a highly-unusual marble immersion font dating from the early 1900s, adds a spectacular quality which the swooping staircases and mezzanines of the display spaces emphasise. The displays themselves are done with enormous flair and some of the collection really is delightful.
For a few more of the Queen's pounds sterling you can scale the church tower and survey the cityscape from a hundred feet or so up, peeking into the Archbishop's windows and observing workmen on the buildings around having their tea.
Finally in a courtyard - an island of the old graveyard - formed by the dramatic glazing of the new museum café is the tomb of the Tradescants. It's been reconstructed over the centuries, but the carvings apparently follow closely the designs commissioned by John Tradescant the Elder's widow. Naturalist he may have been, but did he really believe in a beast like this?