Water blasted through these pipes to spin the turbine and generate electricity.

In 1911 the world's largest power station. During World War II one of military's greatest sabotage operations occurred here. Vemork Rjukan.

This building was built in the 13th century, it's the oldest building at the Tinn Museum Rjukan Norway. It was built before the black death, which killed half the population before 1350. The norwegians did not have to build houses for the next 200 years, there was a surplus. Look closely at the logs, the way they are carved, in an oval-shape, that technique was lost forever.