The weekend’s best in nightlife, music and art. For even more, check out Nightlife Agenda.

Grab your bike, and er, your fat suit and join the Washington Area Bicyclist Association on Saturday at Yards Park. (Washington Area Bicyclist Association)

Saturday: New Belgium Brewing sponsors Tour De Fat, a day-long festival of cycling, which begins at 11 a.m. with a parade of costumed riders on decorated bikes. The rest of the day features music, vaudeville performers, bike contests (including the "slow ride" race), beer tastings for adults and games for peddle-pushers of all ages. If the day makes you fall in love with the two-wheeled lifestyle, one attendee will have the opportunity to trade the family car for a $2,500 gift certificate to a local bike shop.

Saturday: The true story of the Sierra Leone Refugee All-Stars is so incredible that it could be a movie - if it weren't already. The musicians met in refugee camps after war drove them from Freetown, Sierra Leone. They formed a band to entertain their fellow refugees, became the subject of an award-winning documentary and, when the war ended, began recording an infectious mix of highlife, soukouss, reggae and soul. Their newest album, "Radio Salone," is as joyful as ever; dance to the band's songs at Artisphere this weekend.

Saturday: One reason kids love the Imagination Bethesda event so much? It's one of the few times they're allowed to play in the street. Norfolk and Auburn avenues in downtown Bethesda become a tent playground, with hands-on crafting and painting activities, music and dance performances and treats from Haagen-Dazs, Smoothie King and more.

Saturday-Sunday: Washington is awash in historical knowledge thanks to our city's abundance of free museums. And although the Smithsonian is a fantastic resource, let's not overlook the Dupont Kalorama Museums Consortium, nine off-the-Mall museums that are worth the price of admission year-round and especially during the Dupont Kalorama Museum Walk Weekend, when they're free. Visit the Phillips Collection, the Textile Museum, the Woodrow Wilson House and others on Saturday from 10 a.m. to 4 p.m. and on Sunday from 1 to 5 p.m.

Saturday-Sunday: Food and wine in the Virginia countryside always makes for a fine weekend outing, and the 32nd annual Vintage Virginia wine festival is no exception. Forty wineries from the commonwealth will pour samples alongside cooking demonstrations, entertainment and a gauntlet of D.C. food trucks on Saturday from 11 a.m. to 6 p.m. and Sunday from 11 a.m. to 5 p.m. Don't want to drive? Round-trip shuttle service between Bull Run Regional Park and the Vienna Metro station for $33.

Sunday: We're a little more than a year away from the start of the 2014 World Cup, and the team that hopes to represent the United States in Brazil is beginning to take shape. Stalwarts Michael Bradley and Clint Dempsey lead the U.S. National Team into Sunday’s friendly match against an elite German team that will bring a squad of established international players, including Lukas Podolski and Miroslav Klose, to RFK Stadium. Kickoff for the U.S. National Soccer Team vs. Germany is at 2:30 p.m. Both teams will hold free public training sessions Saturday, with Germany on the field at 11:30 a.m. and the U.S. at 3 p.m.