The Atlas Obscura Podcast

The Secret Subway Under Broadway

Jan 29, 2026
Matthew Algeo, author and historian of quirky urban tales. He unpacks Alfred Beach and the secret pneumatic subway built beneath Broadway. Short, clandestine tunneling, political fights with Tammany Hall, and how fan-driven tube travel actually felt. The story touches on Beach’s daring launch, later uses of the tunnel, and the legacy of his tunneling inventions.
Ask episode
AI Snips
Chapters
Books
Transcript
Episode notes
INSIGHT

Broadway Chaos Spawned Underground Thinking

  • 1860s Broadway was chaotic, unregulated, and clogged with horse-drawn traffic and vendors.
  • That chaos motivated Alfred Beach to imagine an underground alternative using pneumatic power.
ANECDOTE

Early Career At Scientific American

  • Alfred Beach bought Scientific American at 19 and turned it into a leading invention magazine.
  • He pursued inventions himself, like a space-saving bowling alley, showing his hands-on tinkerer nature.
INSIGHT

Pneumatics Offered A Cleaner Transit Vision

  • Pneumatic tube mail systems in Europe inspired Beach to scale the idea for passengers.
  • He saw stationary fans could push and pull a capsule, removing horses, smoke, and muck from streets.
Get the Snipd Podcast app to discover more snips from this episode
Get the app