| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Hong Kong, Macau, and Guangdong: Quest for Harmony |
February 7, 2012
PBS
|
60 | |
| S04E02 | Geneva and the Matterhorn: Quest for the Water Castle |
April 4, 2012
PBS
|
60 | |
| S04E03 |
Basel and Lucerne: Quest for the Crossroads
series finale
|
April 4, 2012
PBS
|
60 |
No artwork of this type.
No artwork of this type.
No artwork of this type.