The guys travel through time and stop by the unforgettable history-themed tanks ATM has built. We take a look at a 1960s lava lamp and a cellphone tank with an interactive touchscreen! Stream Full Episodes of : https://www.animalplanet.com/tv-shows/ Subscribe to Animal Planet: https://www.youtube.com/channel/UCkEBDbzLyH-LbB2FgMoSMaQ?sub_confirmation=1 Join us on Facebook: https://www.facebook.com/AnimalPlanet Follow Animal Planet on Twitter: https://twitter.com/AnimalPlanet Follow Animal Planet on Instagram: https://www.instagram.com/AnimalPlanet/