Not the most exciting place inside, but a lovely rooftop area which not all that many people seem to know about, 2 mins walk from Old St station. If it’s packed then The Red Lion is just up the road.
London has great green spaces. There are large royal parks and small public gardens, hidden allotments and roof terraces. Each one has its own identity and characteristics and everyone has their favourite. In summer they become extensions of people homes, you see girls sunbathing from 9 am and the endless picnics mean you can eat 3 meals a day in the park. My favourites - St James Piccadilly Gardens, Hyde Park, Barbican Conservatory.
As preposterous as this sounds I think there are few ills that can’t be cured by sitting lazily on a stack of rugs in Liberty and allowing the patterns to wash over you in a warm, and slightly itchy, haze. If you don’t believe me try it. The second you step off the main shopping area the sound and lights dim, the rugs beg to be touched, and all your worries seem to disappear.
A great walk down an old abandoned rail way from Finsbury Park to Highgate. Most of the original platforms are sill remaining so its an interesting place to explore...