Expedition 33 Commander Suni Williams starts off her tour of the International Space Station with a look at its nodes -- Harmony, Tranquility and Unity -- which include the crew's sleeping quarters and hygiene station. After that is is on to a look at the Destiny, Kibo and Columbus labs as well as the Quest airlock. Suni also shows us the station's observation deck, the cupola, as well as the Advanced Resistive Exercise Device in the Tranquility node, before heading into the Leonardo Permanent Multi-Purpose Module. The tour concludes with a visit to the Russian segment, which includes Zarya, the first segment of the station launched in 1998, and Zvezda, the central command post. She also takes a look at the Poisk and Rassvet modules where Soyuz spacecraft are docked.