I toured the private library of J.P. Morgan, one of the richest men of the Gilded Age. It felt like going back in time.

Tech Insider : Travel, Business, Style
morgan library
Inside the Pierpont Morgan Library.

Kurka Geza Corey/Shutterstock

A guide to every real-life historical figure on 'The Gilded Age'

Tech Insider : Business
Taissa Farmiga, Ben Lamb, and Carrie Coon in
Taissa Farmiga, Ben Lamb, and Carrie Coon in "The Gilded Age."

Karolina Wojtasik/HBO

See inside Marble House, Alva Vanderbilt Belmont's 140,000-square-foot Newport mansion that appears in 'The Gilded Age'

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Marble House in Newport, Rhode Island.
Marble House.

Alexander Nesbitt — The Preservation Society of Newport County

Look inside the Breakers, a 70-room, 138,300-square-foot mansion that belonged to one of America's wealthiest Gilded Age families

Tech Insider : Travel, Business, Style
The Breakers, a large stone mansion.
The Breakers was owned by one of America's wealthiest families.

Alexander Nesbitt/The Preservation Society of Newport County

A 6-acre Vanderbilt equestrian estate from the Gilded Age is listed for $3.5 million. Take a look inside.

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An aerial view of Sandy Point Farm.
Sandy Point Farm in Portsmouth, Rhode Island.

Concierge Auctions

Photos show the lavish interiors of The Elms, a Rhode Island mansion built for a coal millionaire in the Gilded Age

Tech Insider : Travel
The Elms.
The Elms in Newport, Rhode Island.

bodhichita/Shutterstock

Take a look inside Rosecliff, a 30-room mansion built for a Gilded Age heiress and modeled after a French palace

Tech Insider : Travel
Rosecliff. A giant white mansion.
Rosecliff.

Dave Hansen – The Preservation Society of Newport County

One of New York City's last surviving Gilded Age mansions is for sale for $65 million — see inside the historic home

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15 East 63rd Street exterior and living room
The Upper East Side mansion was built in 1901 at the height of New York's Gilded Age.

Evan Joseph for Sotheby's International Realty

Look inside Lyndhurst Mansion, a historic 14,000-square-foot Gothic Revival home featured in 'The Gilded Age'

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Lyndhurst Mansion.
Lyndhurst Mansion.

Talia Lakritz/Business Insider

Inside the Astor family, one of America's wealthiest Gilded Age dynasties whose descendants are friends with British royals

Tech Insider : Travel, Politics
Waldorf Astoria
The Waldorf-Astoria.

Spencer Platt/Getty Images

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