What are some cities that have:

- high # of parks / public spaces per sq km
- walkable, public transit
- pleasant climate

 starting with ones Ive been to and liked:

- Singapore
- Vienna, Austria
- San Francisco, USA
- Brighton, UK
- Washington D.C. USA
- Hong Kong
- London

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Exactly, given London makes the cut for “nice weather” Warsaw should be on that list as well