Astrid gives us a detailed description of the Toul Cathedral, its history, and its special features. Though its gargoyles may look scary, they serve a special purpose: draining rainwater off the roof. A light and sound show takes place every year, highlighting the gargoyles and the cathedral's amazing architecture.

Parisians can thank Fulgence Bienvenüe for their metro system, which is so efficient that many people use the names of the metro stations in favor of street names when giving directions. Some of the most interesting stations are Bir-Hakeim, overlooking the Eiffel Tower, and Arts et Métiers, with its old-fashioned industrial design. Some metro stations are a destination in themselves!