Learn about duels; then learn about manatees.

Get your schvitz on with the Black Hole of Calcutta; then direct your residual glisten to chrome. (Also note kind of long brief segment on Lady Jane Grey.)

Learn about the Congo Free State; then learn about refrigeration.

Learn about satellites; then learn about ambergris.

Learn about the original Byronic hero, Lord Byron; then learn about the original fulminologic hero, lightning.

Learn about diamonds; then learn about traveling around the world. It's a pretty glamorous episode.

Learn about the Barbary Wars; then learn about horses.

Learn about the lost colony of Roanoke; then learn about Madagascar.

Learn about English seafaring superstar Sir Francis Drake; then learn about meteorites from inner space.

Learn about mischievous money manager Bernie Madoff; then learn about the limnic eruption at Lake Nyos.