Construction of the Brussels International Exposition

The video discusses a giant concrete arch located at the entrance, noted for being the largest in the world. It provides an overview of its significance and details about its size and location.

What is described as lagging behind the giant?

Where is the concrete arch located?

What is significant about the concrete arch mentioned in the text?

How does the text describe the size of the arch?

What feelings or impressions does the text evoke about the arch?