7:30 – 11:30 p.m., Free
Boston Bike Party Presents: A Space Odyssey
Put on your finest intergalactic duds, hop on your ride and get ready to roll through the streets blasting the sweet sounds of Bowie and the Beastie Boys. Ride begins in Copley Square and ends with an afterparty at Aeronaut Brewery (14 Tyler St.).
7:30 – 8:45 p.m., Free
Tango Society of Boston Special Workshop
16 Bow St.
Join the Tango Society of Boston for a special, free class as they thank the community for another year of support. It takes two to tango, so track down a partner and get ready to show off your moves.
10 a.m. – 9 p.m., Cost Varies by Age
LEGO Star Wars Days
Legoland Discovery Center
598 Assembly Row
Grab the kiddies and start practicing your best Wookie impression – Star Wars is coming to Legoland! The Discovery Center will be visited by Droids, Stormtroopers and Jedi knights, and activities include a costume contest and a scavenger hunt. Continues through November 16.
8 – 10:30 p.m., Free
Whiskey Treaty Roadshow
Arts at the Armory
191 Highland Ave.
Featuring singer/songwriters Tory Hanna, Abe Loomis, Billy Keane, Greg Smith and David Tanklefsky, this night of free Americana and roots music is guaranteed to get your toes tapping and your heart pumping.
1 – 5 p.m., Free
Wrap Around Sale
155 Powderhouse Blvd.
Nave Gallery’s yearly Wrap Around Sale features local artisans selling handmade knitted, crocheted and sewn gifts. All proceeds go to benefit the Somerville Homeless Coalition, making this an event that’s sure to warm both your body and your soul. Runs through December 14.
7 p.m., No Cover
El Potro Mexican Grill
61 Union Sq.
On weekends, El Potro’s authentic Mexican cuisine is complimented by an equally authentic live mariachi band.