For the lovers of art, take museum virtual tours:

The Courtauld Gallery

Frick Collection    or spend some time with The Frick Collection curator

Getty Center opened up many of their exhibits (Getty catalogs for free viewing and download)

View Salvador Dali Theatre-Museum as you’ve never seen it before.

Learning about & Creating Art

Doodlewash Watercolor Gallery - On the website of Charlie O’Shields, creator of Doodlewash® and the founder of World Watercolor Month, you can find many art challenges and watercolor images.  You can also submit your own through the Google Art Project 

Take an art selfie and find which famous portrait looks like you, or with the help of an art transfer see how you would look if your favorite artist painted your picture.

Explore Google Arts Experiments 

Take an art class with Library Artist Works, check out Hoopla e-books teaching you watercolor techniques 

Holiday Baking

Hoopla collection of cookie recipes 
Libby's
Epicurious best holiday cookies recipes
Food & wine collection of cookie recipes
Bon Appetit cookies

Cooking:

If you want to try your hand at baking, here are 30 best apple dessert recipes from Tasty and thekitchn.com

5 Unexpected Dishes to Make in the Microwave

Make an ice cream at home without ice cream machine with recipes tested and proven to work:
No-churn, Easy Chocolate Ice Cream recipe
New England-Style Frozen Custard
6 Ways to Make Ice Cream Without an Ice Cream Machine

Venturing Outside:

And for fun, since it's a harvest season, a link from CT Dept. of Agriculture with listing of Pick-Your-Own farms
Social Distance-Friendly Hikes in CT
Use this sky map to watch stars from your backyard:

Hobbies:

Videos for simple DIY floral arrangements
Hoopla collection of books on flower arrangements from beginners to advanced