At a glance, the border between the United States and Canada would seem to be at the friendlier end of the international boundary spectrum. But even though the US-Canada border is now pretty tame, when two countries touch each other over a stretch of 5500 miles, it can result in some surprisingly weird disputes, misunderstandings, geographical quirks and ... ... Show More
Mar 10
A Man, a Plan, a Canal—Mars!
How one wealthy, amateur astronomer convinced the world Martians were real. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simp ... Show More
32m 40s
Feb 2019
An architect's subversive reimagining of the US-Mexico border wall | Ronald Rael
What is a border? It's a line on a map, a place where cultures mix and merge in beautiful, sometimes violent and occasionally ridiculous ways. And a border wall? An overly simplistic response to that complexity, says architect Ronald Rael. In a moving, visual talk, Rael reimagine ... Show More
11m 30s
Oct 2022
On the Border: Niagara Falls
Tim Marshall considers Niagara Falls, the busiest crossing point on the world’s longest border. The fortunes of the two cities either side of the famous Falls have varied over the years as the advantages of being one side of the line, or the other, have played out. Today it is th ... Show More
27m 37s
