There's a terrace on the 9th floor of the Westfield Shopping Centre. It's very difficult to get to. To get to the terrace you need to enter 835 Market Street, right next door to the Westfield Centre's main entrance. Walk a bit and you'll come across a guard. Explain that you're going up to see the terrace, they'll know the drill. The guard will escort you to the proper elevator. You'll be  asked to get out of the elevator on the 8th floor by a different guard, and then you have to take another elevator to get to the 9th floor which is where the Sky Terrace is located. If that sounds confusing just ask the guards for help. They are asked these same questions every time someone new finds out about this place (which is quite rare). It's only opened during business hours. Photo via Yelp

Secret gardens seems like such a lost art.  Glad they are alive and well!

Alive and well and hard to find... Without someone making them not a secret!