Elisa B.
Yelp
I love the unfussy, under-hyped, simply lovely Old Botanic Garden.
When I find myself burnt out by lunch time 'cause I've been running around since early morning and I'm in dire need of some quiet time, I just grab a to-go sandwich or salad from Coop, Babu's or Hiltl (all at walking distance) and come here to eat and read.
I originally found it by chance, walking alongside the Schanzengraben, but I immediately loved it. It's small, but easy to get to and fun (but relatively quick) to explore, especially if you have kids in tow; and it makes for a great spot for an impromptu lunchtime picnic!
It's very quiet, so it's great if you just want to chill and read a book; or even take a short nap on the grass, if the mood strikes ;-)
The small octagonal greenhouse is lovely; sometimes it gets rented out for private dinners or performances.
There aren't very many benches, but if you are anything like me, you probably prefer to sit on the grass - and it's quite nice here, particularly from late spring to early fall (or as long as the weather holds.)