RIO Washingtonian Center

RIO Washingtonian Center, stylized as rio, is a 760000 sqft hybrid power center and lifestyle center with shopping, restaurants, and entertainment in Gaithersburg, Maryland located immediately south of the interchange between Interstate 270 and 370. The original RIO building opened in 1982, while the adjacent "Washingtonian Center" and "Washingtonian Waterfront" were developed in 1997 and 2004. It underwent a $30 million renovation in 2020. The center is adjacent to the U.S. headquarters for Sodexo and four Marriott-branded hotels.

Anchors
A two-lane imitation "main street" with small shops, restaurants and parking garages is anchored by four big-box stores:
 * Barnes & Noble
 * Dick's Sporting Goods
 * Kohl's
 * Target

An adjacent artificial 9-acre lake featuring additional restaurants, a trail, hotels, a carousel, and paddle boats is anchored by AMC "Dine-In" Theaters and Dave & Buster’s.