Sneak peek: Meet James Azrael

Movie costume collector James Azrael considers himself the keeper of these iconic costumes, and he and his friend Brad have restored many of the items to their original condition. James' collection boasts identifiable costumes from films like Robocop, Little Shop of Horrors, The Terminator, Friday the 13th and countless more. James and Brad are joined today by friend, appraiser and fellow movie costume collector Mark, who often helps James track down highly sought-after items

Sneak peek: Meet Doug Redenius

The name is Redenius. Doug Redenius. And this former postal worker has been one of the world’s most pre-eminent James Bond memorabilia collectors for more than 30 years. Doug, a Bond fan since Goldfinger first came out in theaters in 1964, sold over 12,000 pieces of his Bond memorabilia to a Miami collector a few years ago. But he still curates the most valuable part of the Bond legacy: many of the vehicles featured in the movies over the years, from the helicopter in the unforgettable chase sequence in From Russia, With Love, to the Q-Boat featured in the unforgettable Thames River chase sequence in The World Is Not Enough. Doug oversees the collection as the co-founder of the Ian Fleming Foundation, which displays the vehicles at charitable fund-raisers. He's joined by fellow Ian Fleming Foundation board member Colin Clark, an airline mechanic and Bond fan who maintains many of the vehicles in the collection. Lisa has brought radio and television host Roe Conn to the airplane hangar where the Bond vehicles are stored. Roe is a longtime Bond fan and veteran 007 memorabilia collector who will appraise Doug's collection… and who has brought one of his own pieces of Bond memorabilia to offer in a trade, which might be a perfect fit on one of Doug's Bond treasures.

Sneak peek: Meet Bill Leff

Sneak peek: Meet Jim Turano

Jim's love for Elton John started in 1973, when he was nine years old and heard "Crocodile Rock" on the radio. In the decades since, he’s proved himself a superfan by attending over 193 concerts — and building an unrivaled collection of Elton John memorabilia.

Sneak peek: Malenna Bravo

Photographer Mel Bravo didn’t start her Barbie collection until she was an adult — but she’s more than made up for lost time, amassing a collection of more than 3,000 versions of the world’s most famous fashion doll, plus accessories, spinoffs and more. And the collection is still growing — Mel estimates she spends $20,000 a year in new acquisitions.

Sneak peek: Meet Jeff Viens

Jeff Viens has assembled an incredible collection of all things Lego, from vintage 1950s pieces to modern Star Wars and Marvel sets. Some of Jeff's prized possessions include a 1958 wooden Lego toy boat, a rare town-plan set from the 1960s, and the world’s largest Lego trebuchet — which he built himself.