Tudor Place opens its doors for free on Sunday to visitors who want to have a picnic on the grounds. (Ann Cameron Siegal for the Washington Post.)

Thursday, April 14

Lincoln's Last Ride at multiple area locations: The Civil War Trust marks the 151st anniversary of Lincoln's assassination with a free pub crawl. After gathering at Andrew Jackson's statue in Lafayette Square at 6:30 p.m., participants will follow Lincoln's route to Ford's Theatre, stopping at several bars, including the Old Ebbitt Grill and the Willard Hotel, where guides will talk about the 16th president's final night. Ends around 10 p.m. Free.

Friday, April 15

"CNN Politics Campaign 2016: Like, Share, Elect" at Newseum: The Newseum’s “Campaign 2016” exhibition ponders how presidential campaigns function at a time when Facebook feeds are populated with live political commentary and rants. Exploring the roles of voters, journalists and politicians in the age of digital and social media, it pushes the ongoing campaign trail into the museum realm. $22.95, seniors $18.95, age 7 to 18 $13.95.

Truckeroo at the Half Street Fairgrounds: The seasonal food truck festival is back. From April through September on the third Friday of each month (except July, when it’s the second Friday), the Half Street Fairgrounds will host a variety of food trucks for an all-day eating extravaganza. The lineup of 27 trucks includes Sang on Wheels, Korean BBQ Taco Box and Goodies Frozen Custard. 11 a.m. to 11 p.m. Free.

Saturday, April 16

Obscura Day at multiple area locations: Fans of the weird, hidden and surprising should get a kick out of Obscura Day, a global celebration of offbeat places and things. In the D.C. area, events range from an amputation demonstration (using a model leg, obviously) to a primer on Houdini's connection to the District. Prices vary; visit website for complete listings.

Record Store Day at multiple area locations: A number of D.C. stores have signed on to participate in this annual event, including Som Records, Crooked Beat, Hill & Dale and Smash. This year’s official ambassador is Metallica, who will release “Liberté, Egalité, Fraternité, Metallica! — Live at Le Bataclan,” a concert recorded at the Parisian club in 2003. Free.

Emporiyum in Baltimore: You’ll want to eat your way through the free and for-purchase fare from local restaurants and artisans at this food market, not to mention those from further afield (Detroit, Raleigh, New York, Charleston, etc.). The selection is wide-ranging and, yes, eclectic: Everything from stuffed dates and mead to bacon jam and small-batch bitters. Through Sunday. 600 E Pratt St., Suite 300, Baltimore. 5 p.m. $15-$40 (some sessions are sold out).

Cherry Blast at Carnegie Library: If you've always wanted to go to a Japanese-inspired anime/cosplay/gaming party, the wait is over. Cherry Blast promises tastings of sushi, sake and whiskey, plus access to a cosplay competition, anime fashion show and manga and Tokyo street food vendors. 6 p.m. to 2 a.m. $20-$125.

Beach Fest at Clare and Don's Beach Shack: Summer's not as far away as you think. Clare and Don's Beach Shack is getting a jump on flip-flop season at its first Beach Fest in Falls Church, complete with six local bands, a beer truck and an outdoor dance floor covered in sand. 1 to 7 p.m., $15, age 10 and younger free.

Sunday, April 17

Cochon 555 at Loews Madison Hotel: Pork lovers, take note. Cochon 555, the traveling tour de pig, makes its annual stop in the nation’s capital. Five chefs — Jennifer Carroll of Requin, Anthony Lombardo of the Hamilton, Louis Goral, above, of Rural Society, Jonah Kim of Yona and Marjorie Meek-Bradley of Ripple and Roofers Union — will compete, each tasked with making a maximum of six dishes using a whole heritage-breed hog. The winner will be decided by the audience and a panel of judges, with the champion moving on to the national throwdown in June in Colorado. 5 p.m. $125, includes food and drink samples.

Earth Day Picnic at Tudor Place: Have you ever strolled through Tudor Place and thought, "Gee, I'd really like to have a picnic here?" You're in luck. In celebration of Earth Day, Arbor Day and the beginning of its annual plant sale, the D.C. mansion welcomes visitors to bring their own picnics and lounge on the property's gardens. Plus, admission will be free. Noon to 3 p.m. Registration recommended.

Fritz Hahn, John Taylor, Emily Codik and Becky Krystal contributed to this report.