During the early 20th century, malaria was ravaging the world. We hear the story of Dr. Charles Campbell, who had a plan to cure it. But as it turns out, his big idea was… rather batty.

In the 1980s, a group of friends on the track team at Sul Ross State University hauled a discarded dorm room desk to the top of a mountain. They left a notebook there to keep track of their run times and leave little notes for each other. Then… other people found it. And then… it started a tradition.

Visit the Atlas entry for the Sul Ross desk, and learn more about the archives containing the Sul Ross desk notebooks.

San Juan Sounds is an iconic studio where musicians, engineers, and quite possibly a music-loving ghost carry on the island’s musical traditions, which date back hundreds of years.

This episode is produced in partnership with Discover Puerto Rico.

Travel to Denver Colorado and meet Steve Berke who helped found the first International Church of Cannabis in 2015.

Learn more about it here.

The San Francisco Cannabis Buyers’ Club was one of the first marijuana dispensaries in the country. Its members were people with AIDS, cancer, and other serious illnesses, and inside the club had stages, TV lounges, puzzles, and other things that would bring people together. Today, we meet the unexpected mix of gay rights organizers and cannabis advocates behind the club, and we hear about their unorthodox route to opening it – including why they tried to get busted by the police.

An ancient cemetery in western China may hold the answer to a question asked by many a stoner: where on Earth did humans first smoke weed to get high?

Learn more about the cemetery in this 2019 paper in Science Advances.

Keep up with Rob Spengler’s archaeobotany lab here.

In 1976, an airplane carrying 6,000 pounds of smuggled weed crashed into a remote lake in Yosemite. A group of climbers had a heyday. Read John Long’s account of the crash, and check out Greg Nichols’ reporting on the same subject.

Plus: Where is the weirdest place you’ve ever cast a vote? Give us a call at 315-992-7902 and tell us about your local unusual polling location. Or, record a voice memo and email it to us at hello@atlasobscura.com.

Cannabis is now legal in more than half of U.S. states, but it remains federally illegal – which makes doing research on the plant extremely difficult. Today, we meet a clever group of scientists who found their way around these laws… by literally driving around them.

Learn more about the CannaVan, and check out some of Rasha and Emma’s original reporting.