Watch with free trial
Sign in
Cities of the Underworld
Cities of the Underworld

Cities of the Underworld

—A camera crew descends hundreds of feet below the streets of major cities -- such as New York, Cairo, London and Tokyo -- to explore the layered remnants of civilizations left buried deep under modern metropolitan centers.
3 seasonsFree episodes availableDocumentary, ScienceTV-PG
Essential planBundle+ plan
Watch with free trial
Compare plans
Travel Channel channel logo
7-day free trial (new users only), then $25 + tax per month.
Cancel anytime. See terms.

Watch Now

Season 14 of 14 Episodes

  • Exploring the neighborhoods, banks, bakeries and other structures carved beneath Naples by ancient Neapolitans.

  • The mysteries of Vlad the Impaler lie beneath the city of Bucharest, Romania.

  • Discovering the ancient kingdom of Cappadocia.

  • Beneath the modern streets of Portland, Ore.

Record to Watch Later

1 episode will be broadcast over the next two weeks

    Secret Soviet Bases
  • Secret Soviet Bases

    Host Don Wildman digs into the subterranean world of Cold War secrets in Ukraine, where the former Soviet Union stockpiled nuclear weapons, established submarine bases and built underground apartment blocks.
    Upcoming
Cities of the Underworld

More about Cities of the Underworld

A camera crew descends hundreds of feet below the streets of major cities -- such as New York, Cairo, London and Tokyo -- to explore the layered remnants of civilizations left buried deep under modern metropolitan centers.

Starring

Don Wildman, Eric Geller, Zahi Hawass, Darius Arya, Luis Fernandez-Gil, François Mequer

8 Free Episodes

No sign-up required

  • Don Wildman explores deep below ancient ruins as he searches for clues pointing to the true fate of the once-mighty Mayan empire.

  • Don explores top-secret military and government tunnels.

  • Don uses brand-new mapping technology to expose the dark and deadly uncharted spaces beneath American cities.

  • Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

Subscribe to Enjoy 70+ Channels

Watch and record live TV with a Philo subscription

One Subscription.
Endless Entertainment.
Unlock live TV, binge-worthy shows, hit movies, and more. Starting at $25/month.
View plans
  • Off Limits
  • Finding Atlantis: The New Evidence
  • Hunting Atlantis
  • Lost Pyramids of the Aztecs
  • Mysteries of the Unknown
  • Lost Cities of the Bible
  • Strip the City
  • Arabia's Best Kept Secrets with Clive Standen
  • Greatest Mysteries Ever
  • Assassination in the Valley of the Kings
  • SpongeBob SquarePants
  • Caught in the Act: Unfaithful
  • The Golden Girls
  • Fatal Attraction
  • For My Man
  • Tyler Perry's House of Payne
  • The First 48
  • 90 Day Fiancé
  • The Big Bang Theory
  • House Hunters

Frequently Asked Questions

  • Philo is a live TV streaming service that offers two plans to fit your entertainment needs:

    Essential ($25/month): 70+ live channels and over 75,000 movies and shows on-demand. New users get a 7-day free trial!

    Bundle+ ($33/month): Includes all the channels and entire streaming library available in the Essential plan, the entire AMC+ library, and access to HBO Max Basic with Ads plan and discovery+ included.

    Both plans: offer 1-year unlimited cloud DVR, let you stream on up to 3 devices at once, create up to 10 profiles, and cancel anytime with no contract.

    Free Channels: Not ready to subscribe? You can also enjoy Free Channels with no credit card required—simply create your account and start watching.

  • Yes! New users that sign up for the Essential plan can try it free for 7 days. You can explore our channels, features, and content before your subscription begins. No contract required—cancel anytime before your trial ends with no charges.

    • An email address
    • A future payment method
    • A broadband internet connection
    • A supported device
    Philo devices
    Web, iPhone & iPad, Android phones & tablets, Roku, Fire TV, Samsung TV, VIZIO TV, LG TV, Apple TV, Android TV, and Chromecast via Android
  • Yes! You can record an unlimited amount of live or upcoming content to your cloud DVR and save them for up to a year. No equipment needed!
    Save
  • Nope! No hardware is required, ever. Philo's DVR is already built into the app, so there's nothing to plug in, set up, or pay extra for.

    With an Essential or Bundle+ subscription, you get unlimited DVR storage included, and your recordings are saved for a full year. If you're watching with the Free Channels, recordings are saved for 30 days.

  • Yes! You can enjoy tons of premium television and movies by upgrading your Philo subscription plan with add-ons.

    Here is a list of our available add-ons:

    • HBO Max Standard (ad-free): Watch HBO Originals and hit movies ad-free for $13 more per month. Live sports included (in HBO Max app).
    • discovery+ (ad-free): Stream hit reality shows, documentaries, and more without the ads - all for $8 more per month.
    • Movies & More: Watch award-winning films, cult classics, celebrity stories, documentaries, and more - for $3 more per month.
    • AMC+ (ad-free): Enjoy ad-free access to the entire AMC+ library for $4 more per month.
    • MGM+ (ad-free): Stream thousands of the latest hits, fan favorites, original series, documentaries, and comedy specials for an additional $8/month.
    • ALLBLK (ad-free): Stream original series, independent films, nostalgic Black cinema, reality, and lively stage plays for $7 more per month.
    • Hallmark+ (ad-free): Watch exclusive originals, reality shows, rom-coms, cozy mysteries, heartfelt dramas, and beloved holiday movies for an additional $8/month.
    • STARZ (ad-free): Enjoy today’s hits, classic movies, and bold original series for an additional $12/month.
  • HBO Max:
    • Sign up for the Bundle+ ($33/month) plan.
    • Go to your Philo account page and follow the steps to activate your HBO Max Basic with Ads plan account.

    discovery+: Sign up for the Bundle+ ($33/month) plan.