Rows of headstones remind us of those we have lost. The flags that mark their final resting place remind us of what they fought for. 

As a long weekend comes to an end, we focus tonight on the meaning of Memorial Day. Beyond the trips to the lake, the barbecues, and the day off work, we pause to remember all those who gave their lives serving our country.

Today we honor them, and the sacrifices they made.

RELATED: U.S. Army tweet gets heartbreaking response from veterans and families

"It seems to have turned into a holiday that marks the beginning of summer. We don’t want to let the memory of those who gave us the freedom be lost in that," said Larry Seiber, whose father and uncle served in the military. "We don’t want to forget those who gave us the freedom we have."

Hundreds of headstones sit at the National Cemetery in Knoxville. Each has a story. 

Graves
WBIR

"My uncle was shot by a Japanese sniper in a tree," said Vicki Seiber, whose uncle Raleigh Seiber is buried there. "It’s my uncle we’re going to pay our respects to."

RELATED: Names of 6,266 fallen heroes from East Tennessee are read aloud on Memorial Day

Every year she visits her uncle's grave to mark Memorial Day. On Monday, she was joined by a group of motorcyclists who wouldn’t let her observe another Memorial Day alone at the cemetery. 

"When you’re in a cemetery like this, you see so many names, you don’t know any of them, but it’s still solemn, it’s still the best ground to be on because it’s the ground that people have paid for with the most," said Christopher Mathison who rides with Combat Veterans Motorcycle Association. "Memorial Day is about remembrance. It’s a time for us to honor and remember our friends and our brothers, and try to honor what they would want us to do for them."

RELATED: Bridges to past bravery abound in East Tennessee