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New York City Secret Tunnel Walking Tour

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Rated on 1 provider · Why

  • New York City
  • 2 hrs
  • Updated November 1, 2026

Discover an art-filled underground tunnel, Grand Central Terminal, and the New York Public Library on a guided Midtown walk.

About this tour

Step below the busy streets of Manhattan and discover a hidden route into two of New York’s most iconic landmarks. This 120-minute New York City Secret Tunnel Walking Tour begins outside Deli on Madison, where you’ll take an elevator down to an underground passage that feels like an art gallery, with works by recognized artists and photographers.

From the tunnel, walk into Grand Central Terminal and take in its vast main concourse, crowned by 125-foot ceilings. Pause at the Whispering Gallery to hear its curious acoustics, then enjoy a light stroll to the New York Public Library, a landmark known for its grand architecture and inspiring collections. An English-speaking live guide leads the experience, connecting the hidden passage with the celebrated spaces above ground.

Choose this New York City Secret Tunnel Walking Tour for a fresh perspective on Midtown’s history, architecture, and art. Meet at 420 Madison Avenue and get ready to see familiar landmarks from an unexpected angle.

Highlights

  • Explore a hidden underground tunnel lined with art
  • Admire Grand Central Terminal’s soaring 125-foot ceilings
  • Test the acoustics in Grand Central’s Whispering Gallery
  • Stroll to the New York Public Library

What's included

Included

  • No additional fees

Ratings on each provider

The ratings and review counts each booking site shows for this tour.

Important information

  • Meet outside Deli on Madison at 420 Madison Avenue, New York City
  • Public transportation options are available nearby
  • Not recommended for travelers with spinal injuries
  • Not recommended for pregnant travelers
  • Not recommended for travelers with poor cardiovascular health
  • Suitable for all physical fitness levels

How this score is calculated

This tour has no TourTruth score yet: Viator doesn't show a usable rating for it. It gets a score as soon as a provider lists one.

How the score works
  • Each provider rating is turned into a percentile: the share of that provider's ratings it beats, weighted by review counts.
  • Listings on different providers are combined in proportion to their review counts.
  • Tours with few reviews are pulled toward the average until more reviews come in, so a handful of perfect reviews can't top the list.
  • The result is shown from 0 to 10. Tours without a usable provider rating are not scored.

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