NEW YORK (CBS 2) — A Norwegian explorer who’s climbed Mount Everest and traversed both the North and South Poles went in quite a different direction for his latest expedition.

Erling Kagge finished a five day and five night journey under New York.

Kagge, local guide Steve Duncan and photographer Andrew Wonder traveled from the Bronx, through Manhattan, Brooklyn and Queens using the miles of tunnels under the City.

“This is New York. Travel by style,” Kagge said.

They went through a maze of sewage drains and subway and train tunnels. And there was danger involved. They brought meters to check for dangerous gases that could be lethal.

However, they also made friends, including a homeless woman named Brooklyn whom they met under Manhattan.

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