Sidedoor

This episode explores the history of the Gunboat Philadelphia, a Revolutionary War vessel lost at the Battle of Valcour Island in 1776.

Smithsonian director Kirk Johnson traces the history of William Temple Hornaday’s iconic 1880s bison diorama, which helped spark early conservation efforts.

Host Lizzie Peabody interviews Smithsonian Secretary Lonnie Bunch about his curated exhibition, *American Aspirations*, celebrating the nation's 250th anniversary.