In a look ahead at a week of Cambridge and Somerville events, the vibe is strangely spooky with a Third Annual “Hafoween,” Crypt Night, Zombie Prom and Here Come the Mummies performing, but there’s also Arab American and Japanese festivals, a Glowball “anti-gala,” Taylor Swift trivia and comedian Emma Willmann.

History Cambridge welcomed the public April 11 to the opening of a pop-up neighborhood history center for North Cambridge. There’s more to come.

The Cambridge Housing Authority wants to buy a house now used as a Lesley dorm in a neighborhood with little low- and moderate-income housing.

In a look ahead at a week of Cambridge and Somerville events, there’s Paul Giamatti’s “Chinwag” podcast, The Bread and Puppet Theater, Record Store Day, “Secret Sounds of Ponds” and other Earth-related events, cake decorating and Shakespeare’s 460th Birthday.

In a look ahead at a week of Cambridge and Somerville events, there’s Sri Lankan cooking, Susanna Kaysen and “Girl Interrupted” a “Little Prince” opera, a Patriots Day colonial fair, Space Week, Grolier Poetry history, a bluegrass festival and a Flat Top Johnny’s reopening pool party.

As part of our year of focus on North Cambridge, History Cambridge hosts a pop-up history center, with an opening event coming Thursday.

Public meetings this week look at a road diet plan and the impact of bike lanes; plans to redo Haskell Street in North Cambridge; hurdles to diversity, equity and inclusion; adapting homes to child care uses; and a housing agenda town hall.

In a look ahead at a week of Cambridge and Somerville events, Jason Mantzoukas does improv comedy, Angélique Kidjo performs, there’s an archaeology fair, advice on how to run the Boston Marathon, the answer to “Can we grow buildings?” and an all-clarinet band.

History Cambridge explores the diverse stories of Revolutionary Brattle Street in a Saturday tour designed specifically for children and families.

In a look ahead at a week of Cambridge and Somerville events, there’s poet Nikki Giovanni, sex revolutionary Candida Royalle, joke fests and mystery comedy, new plays and folk metal, “Dope Science,” a tribute to Lana Del Rey and “Essays in Praise of Excess.”