In this episode, we discover Notre-Dame de Paris, one of the most popular cathedrals in the world. It attracts 15 million visitors each year. An icon of French culture, and history, this monumental masterpiece is testament to the skill of its medieval builders. 

An exploration of Tikal, one of the largest archaeological sites and urban centres of pre-Columbian Mayan civilisation. Hidden in the heart of the rainforest, Tikal was the capital of the most powerful kingdom that the Maya built.

The Holy Sepulchre in Jerusalem is regarded by many as the most sacred Christian site in the world. Every year, the site welcomes more than one million pilgrims. Built on the site of the death and resurrection of Jesus of Nazareth, it has a unique atmosphere. Defied by time, wars and earthquakes, the Holy Sepulchre was rebuilt many times, and has transformed itself into an architectural labyrinth. Here, thanks to the use of new technologies, the Holy Sepulchre reveals its secrets as never before.