Metro in Washington DC opened on March 27th, 1976. All rides were free that day on the 4.6 miles of tracks.

Remember the names of those involved in the Watergate scandal? In August 1974, Richard Nixon resigned before being impeached.

The story of the 1970 TWA hijacking by unemployed bread truck driver Arthur G. Barkley who, distraught from losing his job, attempted to ransom the plane for $100 million. Learn about the hijacking and heroic actions of the plane's captain!

Hazy blue smoke surrounds the origins of the annual Fourth of July Smoke-In. Though it now takes place in Lafayette Square, across the barricaded street from the White House, it began on the Mall.

To sum up the bizarre incident, the Congressman's Lincoln was pulled over the the wee hours around 2 a.m. by the park police near the Tidal Basin. Apparently Mills' nose was bleeding and he had scratches on his face.

This is an unexpected and disappointing article from 1977 about a small group of sixth-graders and a third-grader smuggling marijuana and liquor to and from an elementary school in Montgomery County. Interestingly, this occurred just a few days before President Jimmy Carter implemented the first civil rights law for people with disabilities.

Take a trip back in time to the 1970s and learn about the construction of the Metro along Wisconsin Avenue. We've dug up an old Washington Post article from 1978 and a great diagram!

Take a look back in time with these amazing photos of Metro Center under construction in 1973. Don't miss these other great old Metro photos showing Dupont Circle!

Take a look at the Washington Navy Yard before, during, and after President Kennedy's assassination with these aerial views from the 1960s, 1970s, and 1980s.

Explore the history of Washington D.C.'s Three Sisters Bridge project, an envisioned Potomac River crossing mired in decades of debate.