A New York City townhouse right out of the Gilded Age is on sale for nearly $30 million. Take a look inside.

• A New York City mansion built in the Gilded Age Beaux-Arts style is on the market.
• The 11,500-square-foot building has seven floors, including a cellar and a roof.
• It has passed through many hands over the years, including those of an exiled Russian prince.

While HBO's "The Gilded Age" might be on hiatus — and the real Gilded Age ended 125 years ago — properties scattered across New York City are keeping the era alive.

Among them: this seven-bedroom, 14-bathroom limestone mansion nestled between two high-rise buildings on the Upper West Side of Manhattan.

The 11,500-square-foot property, which is listed with Douglas Elliman agent Lydia Sussek, hit the market in April for a cool $29.75 million.

But it's been around much, much longer. It was commissioned in 1901 by builder Joseph A. Farley, who hired the architecture firm Janes and Leo. Eventually, it ended up in the hands of another real estate developer, Samuel Borchard, who owned the property until his death in 1930, according to his New York Times obituary.

In the 1940s, the exiled Russian prince Sergei Belosselsky-Belozersky purchased the building and made it the headquarters of a nonprofit for Russian immigrants to New York called the House of Free Russia, The Real Deal reported.

It remained as such for 50 years, and was left in a state of somewhat disrepair, until it was sold and refurbished in 1999. The buyer, Randall Rackson, told Mansion Global that the house was an "empty building without a roof" with "rats and pigeons inside it." His renovation was extensive, and he has lived there ever since.

But now he's ready to downsize, he told The New York Post.

While many Gilded Age mansions were demolished, this one remains — here's what the lavish townhouse looks like today.

This Beaux-Arts style mansion was built on the Upper West Side of Manhattan in 1901.

When you walk in, your first view is of the magnificent spiral staircase. But if you don't feel like walking, there's an elevator, too.

The staircase goes all the way up to the fifth floor, though there is a roof deck as well.

The kitchen, which is on the third floor, has a view of the large terrace.

A terrace that has — in addition to seating and a backyard feel that's nearly impossible to find in Manhattan — a working fountain.

Inside, there are seven fireplaces.

A different view of this room shows how arches recur throughout the entire home.

The mansion also has seven bedrooms across its five floors and cellar.

And here's one of the home's 14 bathrooms.

This room has a built-in projector for the perfect movie night.

The ground floor has a wine cellar that's not to be missed. There's also a gym, a game room, a second kitchen, and three bedrooms down there.

One of the best parts of this home is that there's plenty of color — no millennial gray to be found.

The mansion is on sale for $29.75 million, a price worthy of "The Gilded Age."