UPDATE: On Friday, the last of the crosses at Plaza Towers Elementary were taken down.
MOORE, Okla. - Plaza Towers Elementary has become a place of remembrance for the community.
People from around the world come to honor the seven students who died at the school during the May 20 tornado.
It is the last place where all seven students were together.
According to the Moore Public School District, the memorial is set to come down so construction can proceed.
Christopher Legg would have turned 10-years-old Thursday.
But instead of baking a cake or wrapping gifts, his mom, Danni Legg, is tidying up his memorial.
Christopher's cross is one of six still standing.
Kyle Davis' family removed his cross Wednesday.
Danni Legg said she would choose to leave the cross up forever, if it was a possibility.
She said she is thankful it's still standing for his birthday.
The Legg family invited a few dozen loved ones to release balloons in Christopher's honor.
Legg got well wishes and Facebook videos from around the globe; supporters in all 50 states and several countries released birthday balloons for Christopher.
In Moore, at the site of the old Plaza Towers Elementary, it is one of the last times victims' families will be able to gather at the memorial.
They've been asked to claim their crosses.
"It can't stay forever. The district has been working with the families about that and to stay in touch with them so they know the timeline," district spokesperson Jimi Fleming said. "We're getting close to the time we're going to have to make some changes. Fortunately, the families have also been involved in how those lives will be memorialized with the new school."
The district tells us they would not remove the crosses without the consent of the families.
They are encouraging the families connected to the six remaining crosses to re-locate their child's cross.
Construction on the new Plaza Towers Elementary is ahead of schedule.
District officials said there will be a memorial for the seven students who lost their lives at the school.