Beijing Tourist Attractions bulk discount card

Hello,
Is there a tourist card of sort we can pre-buy that
1). allows individuals to visit the main Tourist Attractions of Beijing without queuing for tickets
2). also have built-in discounts.
We are seniors over 60 and our targets are Forbidden City, Summer Palace, Tiananmen, Temple of Heaven, BeHai park and one of the Great Wall likely Badaling Great Wall.

3). If there is such a card, where can we buy it?
Thank you for your kindness.