Daryl Hannah — you know, the mermaid from Splash — was arrested in front of the White House this afternoon.

The United States Botanic Garden is a favorite summer destination, and the list of reasons to visit has gotten longer. In a recently opened exhibit, Celebrating America’s Public Gardens, the nation’s most important public gardens have sponsored mini-displays in two sections called Green Today, Growing Tomorrows (in the National Garden, at the Mall end of the grounds) and A Sense of Place (on the Conservatory Terrace, facing Capitol Hill). In the latter exhibit, each garden’s…

We all know that Halloween is omnipresent throughout the month of October, and this year, like most, fall and Halloween events are a dime a dozen. To make matters worse, if Halloween doesn’t land on a weekend, as is the case this year, we are subjected to not one, but multiple (count them five) days of events that range for spooktacular to gho(a)stly. DCist has sifted through the mess to bring you a a solid…