In the video, a person is seen assembling a Lego structure. The structure is made up of orange and grey Lego blocks. The person starts by placing a grey block on top of an orange block, followed by a purple block on top of the grey block. Then, the person adds a yellow block on top of the purple block. The person continues to add more blocks to the structure, alternating between orange and grey blocks. The structure appears to be a simple, yet colorful Lego creation.