The podcast explores the complexities of creating public memorials, from the Vietnam Wall to the National Memorial for Peace and Justice. It discusses the challenges of commemorating the COVID-19 pandemic and the lack of a national memorial. The episode highlights the efforts of individuals to create a federally recognized COVID memorial and the obstacles they face. It also examines the design and significance of 9-11 memorials, the messaging behind them, and the importance of memorial makers in preserving the memory of tragedies.

Roman Mars, design enthusiast and host of 99% Invisible, explores the design details of Chicago. He discusses the origins of the street grid system, the symbolism of the Chicago flag, notable architectural features, and the significance of the 2024 Lexus GX in enhancing off-roading visibility.

The podcast discusses the evolution of skateboard deck shapes, the role of the Ollie in street skating, and the groundbreaking release of the barnyard skate deck in 1989. It also explores the future of skateboard design, the relationship between skateboarding and city architecture, and the impact of skateboarding on urban planning.

Robert Caro, Pulitzer Prize winning author of The Power Broker, discusses the major story beats and themes of his book with the hosts. Topics include the power dynamics and control of Robert Moses, the struggle for civil service reform, and the impact of power on individuals and communities. The episode also touches on the author's journey in writing the book and the human tragedy of forced displacement caused by road construction projects.

Fake cities and imitation nations created by the US military for training soldiers, role-playing simulations for Afghan refugees, challenges of post-occupation, and preparing for the next war

This episode covers upside-down construction, the linguistics of filler, and a fire that has been burning for decades. It explores top-down construction, discusses the use of filler words in conversation, and delves into the enduring consequences of a fire in Centralia, Pennsylvania. It also includes discussions on Amelia Clark's voice and accent, as well as Lizzie No's latest album and upcoming tour.

Explore the history and significance of multiple Santas in Slovenia during the festive season, including St. Nicholas, Mick Klausch, and Dedek Maras. Learn about the revival of public religious celebrations, the month-long festive season known as Vaselli December, and the symbolic importance of Dedek Maras. Also, discover the inspiring work of scientists supporting refugees and the unique celebration of different figures during the holiday season in Slovenia.

Mini-stories season! Rogue architect, spooky kitchens, a century-old music streaming service, and the French attempt at decimal time. Plus, ghost kitchens and the Telharmonium's musical marvel.

Explore the evolution of calculators, from counting methods in ancient civilizations to the first digital pocket calculator developed in a concentration camp. Discover the significance of calculators in mid-century engineering and the technological advancements that led to the rise of Texas Instruments graphing calculators. Also, learn about the work of the Natural Resources Defense Council in confronting the climate crisis and the impact of human activity. Lastly, listen to the hosts express their appreciation for calculators and recommend Keith Houston's book 'Empire of the Sum, the Rise and Reign of the Pocket Calculator'.

Guest Robert Caro, author of 'The Power Broker', discusses the captivating story of Robert Moses and his influence on New York City. The host announces a book club dedicated to reading and discussing the 1200-page book. Conan O'Brien's enthusiasm for Caro's work is also highlighted. The chapter explores Caro's dedication and meticulous approach. The idea of dedicating oneself to a cause is discussed, along with plans to read and discuss 'The Power Broker' in monthly bonus episodes.