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Created by Philip Grossman
Documentary series investigating why some of the world's most advanced architectural achievements were abandoned.
7.3/ 1023 votes
Specials
6 episodes2017
Season 1
Season 2
8 episodes2018
Season 3
10 episodes2018
Season 4
9 episodes2019
Season 5
8 episodes2019
Season 6
11 episodes2020
Season 7
Season 8
11 episodes2021
Season 9
22 episodes2022
Season 10
16 episodes2023
Season 11
8 episodes2024
Season 12
8 episodes2025
Season 13
12 episodes2026