Size does matter. The battle for architectural supremacy in the race to build the world's tallest building.

Tony Pacelli has the need for speed, and he celebrated his 90th birthday by taking a spin around the Daytona International Speedway.

Ed Shadle has a need for speed and he made sure to get it himself. The do-it-yourselfer created a jet-powered car that he hopes can help him break the world land speed record.

It was a mess of Olympic proportions. An all-electric competitor replaced the venerable Zamboni, but the ice at the speed skating venue at the 2010 Olympics was a disaster. A Zamboni, which made its Olympic debut exactly 50 years ago, came to the rescue.

Olympian, humanitarian and all-around good guy Rowdy Gaines is best known for his speed in the pool and his work as an NBC Olympics analyst. But what makes him happiest? Just take a look in this WebChat!

When Barack Obama won the presidential election he kicked in a door that some believed might never open. The same is happening in the world of racing, only it's women walking through this door.

He just might be one of the most versatile masters athletes on the planet.

One woman from Texas, one from Florida. One small plane – one very big dream. And all came together when it counted, smashing the speed record for an around-the-world flight, and raising an amazing $145,000 for research on a deadly disease.

What's it like to fly around the world in a single-engine plane. These two women are among the very few who know. Pilot CarolAnn Garratt explains how she used her record-breaking trip to raise awareness about the disease that took her mother's life.

Col. Joe Kittinger is well-known for his legendary leaps forward in aviation. But there was a chapter left out of his amazing ballooning career. For several years, Kittinger was Michael Jackson's private pilot.

The mortgage meltdown has taken a toll on most but author Ciji Ware says there's a brighter side to it all.

He survived one of the rarest and most dangerous types of neck injuries to become one of the nation's greatest cyclists.

Kelly Perkins' life came full circle for her. She's a heart transplant recipient who literally took the high road after her surgery and began climbing mountains to raise awareness of the need for organ donations.

Decorated combat pilot Joe Kittinger has been pushing the envelope since he jumped out of a high-altitude balloon just past the edge of space. At age 80, he's still flying high and telling remarkable stories about his legendary life.

World Masters Track Champion Sumi Onodera-Leonard, 76, has overcome a devastating car wreck to get back in the game.

What would you do if you knew your life was about to end? That's the premise of a new movie, starring some Hollywood heavyweights who are all about Growing Bolder in their real and make-believe worlds.

The best glider pilots in North America over the age of 55 gather for the Senior Soaring National Championships. Former fighter pilots and commercial airline pilots call soaring the greatest test of all.

64-year-old adventurer Michael Fournier, a retired French Army officer is ready for his big moment. Fournier has spent two decades and nearly $20 million in a quest to break American Joe Kittinger's 48-year-old record for highest parachute jump.

Mega-stars who rose to fame more than three decades ago, including Cher, Elton John and Bette Midler, are finding a new home in Sin City. Find out why the neon desert is such a draw for these smokin' hot stars.

This is making the rounds on the internet... Definitely some things to think about to squeeze the most you can out of the pumps!

Older is bolder. Check out our interviews with many of the top masters athletes in the world. These men and women are having the best times of their lives as they turn in the best times of their lives.

Older is bolder. Check out our interviews with many of the top masters athletes in the world. These men and women are having the best times of their lives as they turn in the best times of their lives.

She's cycling for a cause, and not only changing the world -- changing her own life for the better! See what Lynn Smythe, aka the Bike Diva, says about heroes, having fun, and staying active.

Older is bolder. Check out our interviews with many of the top masters athletes in the world. These men and women are having the best times of their lives as they turn in the best times of their lives.

This is an unusual love story involving an 89-year-old woman and her beloved Chariot. The two have been together for decades and traveled more than 540,000 miles across this nation's highways and side streets.

In this GB Classic, Marc gets an unforgettable ride in a '57 Chevy that has been "slightly" customized. Fasten your seatbelt -- this is gonna be a wild ride.