These self-made millionaires and billionaires may have some expensive hobbies now, but they weren't always traveling the streets, skies and seas in luxury.
Click ahead and see how some of today's super rich went from rags to riches—and check out the luxury toys they've bought with their hard-earned millions.
—By CNBC's Robert Frank
Posted 6 June 2014
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Gino Gargiulo grew up in New York, but after a series of personal problems, he wound up homeless and living on the streets.
He cleaned himself up, moved to Florida and started an oil-changing business called Oil Can Man.
Now, the company manages entire vehicle fleets. And Gargiulo also owns a car accessories' business and a burger restaurant.
Gargiulo doesn't have to choose between his two favorite luxuries—cars and boats.
He recently combined the two passions to create the first Aventador performance boat—a speed boat that can do 190 mph— inspired by his $650,000 limited-edition Lamborghini Aventador car.
Steve Morgan started out digging ditches in Wales. But he later built a construction business and is now one of the United Kingdom's biggest developers, worth more than $1 billion, according to the Sunday Times of London.
Morgan's trophies include the Wolverhampton Wanderers soccer team and a $30 million estate on the exclusive Caribbean island of Jumby Bay.
But he still works 80-hour weeks, saying "hard work" is the biggest key to success.
Lynn Tilton was born in the Bronx and grew up in Teaneck, New Jersey, as the daughter of a teacher.
As a teenager, she was a competitive tennis player, practicing until 2 a.m. every night while juggling school. After attending Yale on a tennis scholarship, she went to work on Wall Street.
By the age of 25, she was a single mom working up to 100 hours a week.
Tilton later formed Patriarch, a private equity and investment firm that now controls 75 companies, making Tilton one of only a handful of self-made women billionaires in the U.S.
She not only takes a helicopter to Wall Street, she also owns the company that makes them.
Marc Bell was born in the Bronx and was such a poor student that his guidance counselor recommended he attend two years of community college and get a vocational job.
Instead, he went on to launch several companies in the real estate, social networking, media, tech and restaurant industries.
While Bell's net worth is well into the nine figures, he is still a kid at heart.
He built a $1 million theater modeled after the "Star Trek" bridge, and has an entire arcade filled with pinball machines and video games in his home.
A native of Sri Lanka, Antoine Dominic came to the U.S. to study at Radford University in Virginia, and became an accountant.
He eventually joined Excel Technology, a laser company, and rose through the ranks to CEO. In 2008, Dominic sold the company.
An avid car buff, Dominic planned to retire and collect sports cars—his real passion—but through happenstance, he wound up with a Bentley dealership on Long Island.
He expanded the dealership into a luxury-car empire, with Bentley, Rolls-Royce and Lamborghini. He is also one of only four owners of the $4 million Lamborghini Veneno.
"Secret Lives of the Super Rich" unlocks the mansion gates and scores you the ultimate VIP access to an exclusive world filled with unimaginable extravagance and enormous fortunes. Beyond the jaw-popping price tags, megahomes and shiny supercars, the series brings viewers face to face with some of the wealthiest people on the planet, revealing their voracious appetite for the best of the best, and the secret to their extraordinary success.