Good news, Union Station and Tyson's Corner regulars: You're getting Shake Shacks. The fourth and fifth D.C. area Shake Shacks will join locations in Dupont Circle, Penn Quarter and inside Nationals Park next year.

(Marvin Joseph/The Washington Post)

Eater says the Union Station Shake Shack, which was first sniffed out by the Washington City Paper, will be located in the West Hall, near the Potbelly, Chipotle, Yo! Sushi and Starbucks; the Tysons Corner location will open in a freestanding building next to the Tysons Corner Center mall.

• The People's Burger: You voted. We made it. And ate it. 

Should you brave the train station and shopping mall crowds specifically for a Shackburger? It's not advisable, but it's nice to know the next time you're waiting for the Northeast Regional or finishing up a shopping binge, you can comfort yourself with a dose of Shack Sauce.