Listeners share stories about their most treasured collections. Plus: We want to hear your stories about traveling with kids! Give us a call at 315-992-7902 and leave a message telling us your name and story. Or record a voice memo and email it to us at hello@atlasobscura.com.

We go underground in London, where there is a railway built for one purpose and one purpose only: to keep the city’s mail moving on time. All this week, we’re heading underground to discover the stories beneath our feet.

We visit northern Italy, where a mysterious religious community founded by an insurance agent–turned–spiritual leader spent 15 years constructing an underground temple. All this week, we’re heading underground to discover the stories beneath our feet.

We visit an underground chamber in Upton, Massachusetts, that’s puzzled some New Englanders – while others long knew its ancient origins. All this week, we’re heading underground to discover the stories beneath our feet.

We visit an underground oasis in Fresno, California, that’s a winding maze of rooms and passageways filled with lush citrus trees. All this week, we’re heading underground to discover the stories beneath our feet.

Jessica Leigh Hester joins us on a deep dive into the sewer, the subject of her appropriately-titled book, Sewer. She and Dylan talk about some of the interesting (and disgusting) things she found there… like fatbergs. All this week, we’re heading underground to discover the stories beneath our feet.

The story of Thomalind and Priscilla is 300 years in the making and brings listeners to Bunce Island, off the coast of Sierra Leone. READ MORE IN THE ATLAS: https://www.atlasobscura.com/places/bunce-island

Inspired by the novel and movie Around the World in Eighty Days, Eleanor Hamby and Dr. Sandra Hazelip (Ellie and Sandy) ventured out and took the world by storm as they turned 81 years old. Ellie and Sandy’s book, Here We Go: Lessons for Living Fearlessly from Two Traveling Nanas, is out now! And if their story resonated with you about traveling at an older age, tell us about it. Give us a call at 315-992-7902 and leave a message telling us your name and story. Or you can record a voice memo and email it to us at hello@atlasobscura.com

The International Rose Test Garden in Portland, Oregon is a rose-lover’s paradise: there’s over 10,000 bushes and 625 varieties from all over the world. And there’s a great story about how the garden came to be: During WWI, the people of Portland reached out to the gardeners of Europe offering to take care of their plants and save them from destruction. Rachel Burlington, the garden’s curator, wanted to learn more about this, so she started digging into the archives and made a surprising discovery: It wasn’t… quite… true. Rachel tells us what she’s learned about the garden’s origins, and the battle between West Coast cities to be “The City of Roses.” Learn more about the Portland International Rose Test Garden: https://www.portland.gov/parks/washington-park-international-rose-test-garden

Since his childhood, Nick Dawson has been fascinated by Cramond Island, a deserted tidal island off the coast of Edinburgh, Scotland, which became for him a symbol of mystery and untapped adventure. In today’s episode, he finally gets to explore the island, learning about its nature and history, as he tries to get to the heart of why the place is so special. 

As the summer travel season officially closes, we share our favorite memories of the warm months – from minor league baseball games with unique traditions, to surviving travel with kids. Plus, we want to hear your stories about traveling with your own kids – the good, the bad, the ugly, and the beautiful. Give us a call at (315) 992-7902 and leave us a message. Or, you can record a voice memo and email it to us at hello@atlasobscura.com.

A once-blacklisted Hollywood star created a magical theater in Topanga Canyon, California, that still endures and inspires today. READ MORE IN THE ATLAS: https://www.atlasobscura.com/places/theatricum-botanicum

In Ystad, Sweden, every night at 9pm a night watchman scans the horizon for fires from the tower of St Mary’s Church, and sounds his trumpet to let the city know it is safe. This tradition goes back to the Medieval Ages. The Night Watchman of Ystad is one of the last keeping his tradition, and today his role has taken on an even bigger significance. Author and journalist Eliot Stein takes us through the evolution of the night watchman. Read more in Eliot’s book, Custodians of Wonder.

Utah bookseller Ken Sanders has spent his life fighting the Glen Canyon Dam. Inspired by a band of cowboy ecoterrorists in his favorite Western novel, The Monkey Wrench Gang, Ken's used his own blend of hijinks and illegal actions to free the Colorado River. For years he thought he'd failed. But these days, he sees a glimmer of hope that something big is about to change.

In the 1920s, Henry Ford decided to create a rubber plantation in the Amazon rainforest, and alongside it, a tidy little town for his workers: Fordlandia. With its classic American homes and yards, sidewalks and electric streetlights, Fordlandia was a Midwestern anomaly in the Brazilian jungle, one that dazzled American visitors. And it might have actually been a decent place to live – if it weren’t governed by Henry Ford’s rigid and peculiar rules for a wholesome society. Read more in Fordlandia: The Rise and Fall of Henry Ford's Forgotten Jungle City by Greg Grandin.

Dylan and producers Amanda and Johanna take listener questions. If you have a question for our next mailbag episode, give us a call at 315-992-7902 and leave a message. You can also record a voice memo and email it to us at Hello@AtlasObscura.com, or simply email your question.

We journey into New York City’s delis and bodegas, in search of a famous – and controversial – sandwich: the chopped cheese. This sandwich has become a cultural symbol and source of debate, and is so storied that some might call it a “folk sandwich.” Plus, we dig into the rich history of the corner store culture where the chopped cheese originated. This episode was produced in partnership with NYC Tourism.

One of the last remaining World War II Victory Gardens in the U.S is quietly growing across from Boston’s Fenway Park.

Mary Roach is an author of several books including Stiff and Fuzz. And her newest book, Replaceable You, explores the incredible advances and tough questions prompted by the human body’s failings. Mary takes us on a tour of our own anatomy – and what it takes to replace it. Mary’s new book, Replaceable You: Adventures in Human Anatomy, will be out September 16 – preorder the book today!

Here at Atlas Obscura, we’re big on collections. From rare jerseys to popular ‘90s plush toys, our staff shares the things we collect – and what they mean to us. Plus: We want to hear about YOUR collections. What do you collect, and what does the collection mean to you? Or, maybe you have a story about someone who you know who has an outrageous collection. Give us a call at 315-992-7902 and leave a message telling us your name and story. Or better yet, you can record a voice memo and email it to us at hello@atlasobscura.com