DC Beer Week is underway. Through Sunday, local bars and restaurants will be hopping with beer tastings, happy hours and special events. Every morning, we'll provide a rundown of the night's best events. If you need to plan ahead, check out this list of each day's best events that require reservations.

The big one: Sam turns the big 3-0

Lyman's Tavern Play pinball at Lyman's Tavern tonight to win DC Brau giftcards and other prizes. (Photo by Fritz Hahn/The Washington Post)

It doesn't seem that long ago that Sam Adams was everyone's definition of a "microbrew." As the Boston brewery celebrates 30 years in business, the “30 Beers for 30 Years” party at Longview Gallery pours 30 Sam Adams beers — from Boston Lager to Latitude 48 IPA and Word to the Weisse Berlinerweisse — paired with small plates from 30 restaurants, including Granville Moore’sHill Country and Art and Soul. The $55 tickets include unlimited food and drink from 6:30 to 9:30; $75 VIP tickets allow access at 5:30.

Other highlights

DC Brau is hosting a “casual pinball tournament” at Lyman’s Tavern, a corner bar in 16th Street Heights with free popcorn and local beers on tap. There’s no charge to enter the tourney, which runs from 7 to 10 p.m., but you need to bring quarters to play the six machines. High-scorers take home DC Brau gift cards and other prizes.

D.C. Beer Week doesn't stop at the city's borders: Scion in Silver Spring pays tribute to Maryland brewers tonight, featuring some new and interesting beers from Brewer's Art, Evolution and Union Brewing at an all-night happy hour, which means half-price beers from 5 p.m. to close. Among the 20 beers being poured, on tap and in cans, are Brewer's Art's new collaboration with New Columbia Distillers, the makers of Green Hat Gin; Union's new Royal Farmhouse and Black Eyed Susan Saison; and the seasonal debut of Evo's Jacques au Lantern pumpkin ale.

Right Proper Brewing is kicking off a new monthly series called Vintage Tuesdays, which involves tasting a freshly tapped beer alongside an aged version of the same beers. Tonight's debut involves Songlines, which brewery co-founder Thor Cheston refers to as an "aboriginal farmhouse ale," due to the use of Australian hops. Try the dry-hopped version of the beer, which went on tap yesterday, then compare it to a sour-aged version, which spent four months maturing in a steel tank. Doors open at 5 p.m., and half-sized pours of Songlines are available for tasting.

Allagash and New Belgium are two of the finest American purveyors of Belgian-style beer. The two breweries are bringing their love of abbey ales and saisons to Smoke and Barrel for a night called From Belgium to Barrel, which features some really impressive beers. Allagash's Golden Brett is a golden ale brewed with wild brettanomyces yeast and Simcoe hops; New Belgium's collaboration with Tampa's Cigar City brewery is made with Anaheim and Marash peppers, then aged on Spanish cedar. Both New Belgium and Allagash will have barrel-aged beers: Allagash's Bourbon Barrel Black Stout and New Belgium Loves Leopold, which puts the sour La Foile in barrels of Leopold Blackberry Whiskey. Reps from both breweries will be on hand to answer questions from 6 to 8 p.m.