The curious minds at What If investigate the deadly consequences of falling off the world’s tallest building, revealing the physics, impact, and survival possibilities.

I explain the story of the tallest person ever recorded in modern history.

Ah, the subway. Public transit in Toronto is not our strong suit. Line 1, the Yonge-University line, is shaped like a U. Line ...

Skydivers created an awe-striking display after flying through the world’s tallest hotel, the Ciel Dubai Marina shared in an ...

The free-solo climber’s conquering of Taipei 101 aired live on the streamer at 5 p.m. PT/8 p.m. ET and, through the end of ...

I kind of lost track of space and time,” the American told NBC News' "TODAY" after he climbed the famous skyscraper.

He became famous after scaling El Capitan without protective equipment in 2017. Now the 40-year-old athlete has completed the first free solo of Taipei 101 in Taiwan ...

A new report says rock climber Alex Honnold was paid an "embarrassingly small amount," to climb the world’s 11th-tallest ...

After finishing the tallest urban free solo ever — streamed globally by Netflix as 'Skyscraper Live' — the renowned climber ...

One of the most jaw-dropping athletic feats in recent memory happened this past Saturday, when legendary rock climber Alex ...

"Sick," Alex Honnold said as he got to the top spire of the 1,667-foot (508 meter) Taipei 101 building, which dominates the ...

For 92 minutes on a clear Sunday morning in Taipei, thousands of spectators with jittery nerves stared upwards, while people across the world were glued to their screens, as famed climber Alex Honnold ...