Switzerland
- Episode aired Sep 26, 2021
- 45m
A spectacular aerial journey across Switzerland reveals Europe's highest observatory, an earthquake-proof skyscraper and a gravity-defying railwayA spectacular aerial journey across Switzerland reveals Europe's highest observatory, an earthquake-proof skyscraper and a gravity-defying railwayA spectacular aerial journey across Switzerland reveals Europe's highest observatory, an earthquake-proof skyscraper and a gravity-defying railway