We got a look inside One57, New York City's most expensive apartment building and the tower that started 'Billionaire's Row'

New York City is famous for its sky-high buildings and similarly steep real estate prices. One57 - the sleek 73-floor skyscraper in Midtown Manhattan - is no exception.

Nestled on the stretch of 57th Street known as "Billionaire's Row," One57 is officially New York City's most expensive apartment building, with an average price of $6,010 per square foot. In early 2015, One57 broke city real estate records when one of its penthouses sold for a whopping $100.5 million. It was the most expensive apartment ever sold in New York City, and the first apartment sale to surpass $100 million.

Outside of the billionaire-targeted penthouses, the building also has a lineup of turnkey apartments available at a slightly more affordable price. The turnkey apartments span from floors 32 to 38 and come fully furnished with appliances and linens from the One Collection produced by Extell Designs. Buyers of the turnkey apartments don't have to worry about bringing furniture - all they need to move in is a few suitcases.

We got a peek inside some of One57's turnkey apartments - see what happened on our tour.