Modern Marvels | Holland Tunnel

The first underwater tunnel for cars had to solve a seemingly impossible, life-or-death challenge: build a tunnel with enough ventilation to prevent it from becoming a deadly gas chamber.
Aired: 7/24/2018 | 0:05:17
You may also like
  • Coffee The Drink That Changed America
  • Circus
  • Medal Quest: Ice Warriors – Team USA Sled Hockey
  • Rick Steves’ Europe
  • Pioneers
©2019 WNET All Rights Reserved.   825 Eighth Avenue, New York, NY 10019