On THIS IS AMERICA: The largest battle ever fought in North America took place in Pennsylvania 145 years ago this week.

On THIS IS AMERICA: Remembering a year that included the murders of Robert Kennedy and Martin Luther King, antiwar protests, political surprises, and riots at the Democratic convention in Chicago.

On THIS IS AMERICA: The second of two programs about the artist and the changes in his life and music, during a career that is still going strong after 40 years.

On THIS IS AMERICA: In the ‘60s he was a wildly popular folk singer. But his musical journey took him beyond the music his fans expected him to play. First of two parts.

On THIS IS AMERICA: A guided tour of celebrity museums in the U.S., including the Lucille Ball-Desi Arnaz Center and the Stoogeum.

On THIS IS AMERICA: The story of the flag raising captured in 1945 on Iwo Jima by Associated Press photographer Joe Rosenthal, and the memorial statue it led to.

On THIS IS AMERICA: Hearing technology offers more hope than ever. Yet the devices are not always welcomed. Also, how one young woman is learning to accept herself for who she is.

On THIS IS AMERICA: The presidential campaign heads into the last six contests to choose a Democratic nominee. Also, short biographies of Barack Obama, Hillary Clinton and John McCain.

On THIS IS AMERICA: If you like to hike, camp, climb, raft, fish or hunt, then this is a state for you. And one area that offers many kinds of outdoor activities is the Potomac Highlands.

On THIS IS AMERICA: The Newseum just moved its collection across the Potomac River from Arlington, Virginia, to a bigger space in Washington.

On THIS IS AMERICA: Yankee Stadium, which opened April 18, 1923, is being replaced with a new one across the street. The Mets, the city's other Major League Baseball team, are also getting a new stadium.

On THIS IS AMERICA: A visit to Independence Hall and other places in Philadelphia, Pennsylvania. The city's past includes serving as the national capital from 1785 to 1790.

On THIS IS AMERICA: "You should not leave your country thinking 'Oh, wow, cool, a year of holiday,' because it's also hard. But at the same time it's so cool," says an Italian teen studying in the U.S.

On THIS IS AMERICA: Most of these songs have been around a long time but are still popular today

On THIS IS AMERICA: A country home important in Abraham Lincoln's presidency, and his Emancipation Proclamation, has been restored and opened to the public.

On THIS IS AMERICA: The rules for seeking permanent residency are examined in the second of two programs on immigration issues in the U.S.

On THIS IS AMERICA: Debate centers on millions of illegal immigrants in the country. The U.S. Congress has failed to agree on a reform plan, so states are passing their own laws.

On THIS IS AMERICA: Skiing, snowboarding and mountain resorts add up to billions of dollars. Why an industry that can make its own snow is still concerned about climate change.

On THIS IS AMERICA: The history of the White House. It dates back to George Washington's time and every president has lived there -- except George Washington.

On THIS IS AMERICA: We learn about their books and talk with Thomas McGuane