Welcome to Centralia, Pennsylvania, a town with just a few residents and a wild history. Long ago, it was a bustling coal mining town, but everything changed in 1962 when a fire broke out underground. That fire still burns today and will probably continue for 250 years. 

Erika and Amelia are joined this week by David DeKok, author of Fire Underground: The Ongoing Tragedy of the Centralia Mine Fire. He shares his theory about how the fire started and what it's like to visit Centralia today.

Find more kid-friendly Centralia history here. 

And don't forget to check out the Fish Doorbell and assist the lock keeper of Utrecht in The Netherlands in helping the fish move through the lock.