Each week, the guests and hosts on NPR's Pop Culture Happy Hour share what's bringing them joy. This week: the Netflix show "City of Ghosts," an iconic Twitter account and more.

Tanya Aguiñiga's art explores what happens to people when they cross the U.S.-Mexico border. Sanford Biggers' works challenge the 'black-washing' of African history.

By analyzing white lead paint in Dutch paintings from the 1600s, including works by Rembrandt and Rubens, scientists were able to devise a new line of evidence for dating and authenticating paintings.

She stars in the film as the woman at the center of a scandal in the fashion world. But the actors' Italian accents have been panned and the Gucci family has criticized the way it was depicted.

We conclude our tribute to Sondheim by listening to archival interviews with collaborators and performers, including Stephen Colbert, James Lapine, Paul Gemignani and Lin-Manuel Miranda.