Evening activity that's not theatre

[concernedforthefuture]

I'm working in London next month and am looking for ideas for things to do in the evening that's not your run-of-the-mill theatre (as I have a few shows already booked).
It will be myself and a colleague / friend (both female, in our early 40s) and we finish work at 5. Can't be a very late night (no later than 10:30-11 finish).
Looking for something a bit different: an activity that we probably wouldn't do at home (we live in the country). A dining experience, seasonal exhibition, something adventurous, a late night event at a museum, a tasting experience etc.

Wildlife photographer of the year exhibition at Natural Hirtory Museum. It’s fab!

Cocktails at One Aldwych!

Thank you both. I'd forgotten about the wildlife photographer exhibition- I went many years ago and loved it. And cocktails are always fab!

Dennis Severs House by Spitalfields Market

Junkyard Golf (an indoor crazy golf bar!) by Brick Lane

Turkish food on Green Lanes (nearest tube is Manor House or Turnpike Lane)

A drink in the bar on top of One New Change, eye level with St Paul's dome