Photo by Gary House.

Friday

GEEKS: Let “eight Nat Geo explorers fresh from the field” teach you all about the Greeks at the National Geographic Museum’s Geek Night. There’ll be a cash bar. (1145 17th Street NW) 6 p.m. $15

NAILS: Learn how to use simple tools to “create a negative space galaxy design” on your nails. Ticket price includes a kit that allows you to apply what you’ve learned at home. The Lemon Bowl (3015 Georgia Avenue NW) 7-9 p.m. $75

SECRETS: Spend your evening reading and sharing secrets as the Smithsonian Associates host Postsecret Revealed: A Party at the National Postal Museum. You’ll have access to the PostSecret: The Power of a Postcard exhibit, music by DJ Alkimist, a GIF photo booth, cash bar, and more. (2 Massachusetts Avenue NE) 8-11 p.m. $25-35

Saturday

BEER: At the Inaugural Beer & Wine Classic, you’ll enjoy unlimited beer and wine samples from over 50 breweries and wineries. FedEx Field (1600 FedEx Way, Landover, MD) 12-3 p.m. or 5-8 p.m. $55-75

WINE: Sommelier Kim Dozier leads you through a tasting of wine good for backyard barbecues. Hera Hub DC (5028 Wisconsin Avenue NW #100) 2-4 p.m. $35-60

FREE STUFF: Stop by the DC Free Store to drop off things you don’t want, and pick up things you do! The Peace House (1005 Rhode Island Avenue NE) 4-7 p.m. Free

Sunday

ONESIES: Know any 3-12 month olds? Learn how to make them a one-of-a-kind onesie using stencils created from household items. Lemon Bowl DC (3015 Georgia Avenue NW) 9:30 a.m.-10:30 a.m. $40

NKOTB: At New Kitchens On The Block, you’ll taste signature dishes from seven upcoming restaurants. Ticket price also includes cocktails and beer. Mess Hall (703 Edgewood Street NE) 12-2 p.m. or 3-5 p.m. $65-95

FILM: DC Underground Movie Night features “microbudget underground shorts (and a feature) from the thriving DC film scene.” The Lincoln Theatre (1215 U Street NW) 6 p.m. $12