About this episode
In episode 93, we get curious about subways for Sam of Toronto, Ontario. Why do we need subways? How are subway tunnels built? Which is the busiest subway system in the world? Learn all about it in this week's super-interesting transportation episode. Send Us An E-mail - curiouskidpodcast@gmail.com Leave Us A Voicemail - 856-425-2324 Support Us On Patreon - https://www.patreon.com/Curiouskidpodcast Shop Curious Kid Podcast Merchandise - http://tee.pub/lic/fqXchg3wUVU Follow Us On Facebook - https://www.facebook.com/curiouskidpod/ Follow Us On Instagram - https://www.instagram.com/curiouskidpodcast/ Follow Us On Twitter - https://twitter.com/CuriousKidPod Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.