The Zodiac

The Erfurt Latrine Disaster (Encore)

The 12 Days of Christmas

Roman Concrete

Where Did Mathematical Symbols Come From? (Encore)

Cryptography

The Legend of Andre the Giant

Get the Lead Out

The Doolittle Raid

Were the Dark Ages Really That Dark? (Encore)

Bell Labs

A History of Antarctica

The Election of 1800

The War of the Currents

Nijmegen: The City That Remembers (Encore)

Spanish Africa

The Mandarin Class and Chinese Imperial Exams (Encore)

Why Does Vatican City Exist?

The History of Credit Cards

Ancient Rome and the Ancient Chinese