Mental Floss

ENGINEERING





Perhaps a recall is in order.

A car accident in a movie usually ends in a huge fireball. But what really causes vehicle fires?

Jake Rossen




A man, a plan, a canal, Panama!

Often called one of the seven modern wonders of the world, the Panama Canal splits the continents of North and South America and launched a new era in global commerce when it opened in 1914.

Benjamin Lampkin
















Vienna’s Wienflussportal, showing the spot where the Vienna River emerges from its underground course.

Discover the hidden rivers buried beneath cities around the world. From Moscow to Tokyo, explore the history and modern efforts to reopen these forgotten waterways.

Julie Fogerson