WBIR Tower was once the world's tallest structure

The world's tallest teenager, 7-foot-9 Olivier Rioux, plans to redshirt at Florida this season

Knoxville was once home to the world's tallest structure

Meet Clover the world's tallest sunflower grown in Fort Wayne, Indiana

China set to open world's tallest bridge, expanding infrastructure push

China set to open world's tallest bridge, expanding infrastructure push

Developers propose Oklahoma City skyscraper that, if approved, would be the tallest in the U.S.

Man attempts to climb world's sixth tallest building with no ropes

Steak 'n Shake to install 'tallest, biggest' US flags that local governments allow

The world's tallest sunflower blooms in an Indiana backyard as a tribute to Ukraine

Documentary filmmaker discusses reaching new heights in 'Skywalkers: A Love Story'

Almost Live Gets All Fired Up! | Special Full Episode

Missing climber from Seattle likely triggered avalanche in Alaska, fell

Dozens of Michigan high school choir students perform in 67-foot Singing Christmas Tree

Colorado man, 2 others presumed dead while climbing New Zealand's highest peak

Everest's highest camp littered with frozen garbage, cleanup likely to take years, Sherpas say