But those open sections are only a fraction of the sprawling building that rises many stories and plunges deep underground.
So wherein lies the King of Pop in the monolith? That may be a secret for the ages.
On Friday, a tourist family asked a guard whether the superstar's tomb was private. The guard said it was.
"Private ... forever?" one of them asked.
"Private forever." he said.
No fans, no paparazzi, and so far no one trying too hard to steal a glimpse of the vault containing Jackson's golden casket.
The exact location may forever remain unknown to all but a select few: A guest who attended the Jackson ceremony told The Associated Press the casket had not been put into the vault by the time mourners left.
The guest spoke on condition of anonymity because of the sensitivity of the day.
Under Friday's hot midday sun, a woman with a camera was denied entry to the mausoleum. Guards shooed away a radio reporter who tried to go inside then began interviewing people outside.
The funeral began Thursday night nearly two hours after its scheduled 7 p.m. time. Some 200 mourners, including 77-year-old Elizabeth Taylor and other celebrities associated with Jackson, showed up promptly, only to wait at the outdoor seating area, under a withering late-summer sun that pushed temperatures to 90 degrees even as it was going down.
The ceremony began with remarks and song after the family arrived to fill the front five rows of white folding chairs.
Mourners then followed Jackson's brothers as they carried the casket into the mausoleum. The singer's daughter, 11-year-old Paris, cried and was comforted by her aunt, LaToya.
Paris and brothers Prince Michael, 12, and Prince Michael II, 7, known as Blanket, began the service by placing a bejeweled crown on their father's casket. They were composed through most of the 90-minute ceremony, the guest said.
Once inside, Gladys Knight performed the hymn "Our Father" (The Lord's Prayer) and moved many to tears, according to the guest. When it was over, many of the 200 mourners hugged each other. Among them were Taylor, Jackson's ex-wife Lisa Marie Presley, Barry Bonds and Macaulay Culkin.
As it ended, Katherine Jackson appeared extremely weary and had to be helped to her car, according to the guest. Earlier, she had a difficult time going into the mausoleum; she was overcome and turned back, making it unclear if she went in at all, the guest said.
More than 400 media credentials were issued to reporters and film crews who were kept behind barricades. The few clusters of fans who gathered around the secure perimeter encircling the cemetery entrance struggled to see.
Glendale police said all went smoothly and there were no arrests.
Jackson will share eternity at Forest Lawn with the likes of Clark Gable, Jean Harlow and W.C. Fields, entombed alongside them in the Great Mausoleum. The level of security and secrecy about the location of Jackson's vault all but guaranteed it won't be turned into a shrine or tourist stop.
The entombment also ends months of speculation that the singer's body would be buried at Neverland Ranch, in part to make the property a Graceland-style attraction.
The King of Pop died a drug-induced death June 25 at age 50 as he was about to embark on a comeback attempt. The coroner's office has labeled the death a homicide, and Jackson's death certificate lists "injection by another" as the cause.
Dr. Conrad Murray, Jackson's personal physician, told detectives he gave the singer a series of sedatives and the powerful anesthetic propofol to help him sleep. Prosecutors are still investigating, and no charges have been filed.
Associated Press Special Correspondent Linda Deutsch and AP Writers Derrik J. Lang, Sue Manning, Sandy Cohen and Ryan Pearson contributed to this report.