Airstream Boutique at Trohv; D.C. Sandals Shopping

TAKOMA PARK—Today, Small Room Collective's mobile Airstream boutique pulls into Trohv as part of their nationwide shopping tour.

PENN QUARTER—The National Portrait Gallery's "Cupcake Katy" Katy Perry painting is on view for just a short time.

SANDALS WIRE—We rounded up eight indie boutiques to visit for all your sandal shopping needs.

SMITHSONIAN INSTITUTION—On Tuesday, Hillary Clinton gave the keynote address honoring designer Ralph Lauren at a ceremony at the National Museum of American History. Lauren's contributions helped restore the Star-Spangled Banner.

EMBASSY ROW—To celebrate the 50th anniversary of its iconic poppy print, Marimekko and the Embassy of Finland stage an exhibit, open to the public till the end of this month.

MERRIFIELD—A mobile surf shop pops up this week at Mosaic District, thanks to eco-friendly Faherty Brand.