This weekend brings the best of D.C.: nightlife, history and culture. Get out there and enjoy it.

– Four DJs will come together Saturday night at the Black Cat for Disco in the Dark, a $5 dance fest which recurs throughout the year.

– Relive the history of the Titanic 100 years after its fateful sinking at the National Geographic Museum. The Titanic exhibit runs until Sept. 9, and student tickets are $6.

 
– Check out the Smithsonian National Air and Space Museum’s “Fifty Years of Human Spaceflight” exhibit, which is more relevant and profound than ever in light of Neil Armstrong’s recent death. Admission to the museum is free, and exhibits are open from 10:30 a.m. to 5:30 p.m.