The mansions of Newport and the Hudson Valley present a fascinating duel of East Coast rivalry.

Newport, the Queen of Resorts, is where Gilded Age titans displayed their wealth on the waters edge.

Contrast that with the Hudson Valleys stately mansions.

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Architecturally, they favor classicism over flash, channeling restraint rather than opulence.

And then theres Marble House, Alva Vanderbilts love letter to French opulence.

The Elms is here to dazzle on the spot, an instant showstopper in Newports high society.

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Hudson Valley estates were built for retreat; Rough Point was made for eccentric charm.

Duke added her own flair, from the museum-worthy tapestries to the immaculate gardens lined with seaside views.

Marble House

Marble House is Alva Vanderbilts vision of grandeur, set in stone and built to stun.

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Inside, the place doesnt hold back.

Alvas taste for European flair shows in every corner, from the mirrored walls to the heavy chandeliers.

Compared to the sprawling, nature-blending mansions of the Hudson Valley, Marble House is pure, polished theater.

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Rosecliff

Rosecliff is Newports version of a Hollywood set designed to dazzle and purpose-built for grand entertaining.

Commissioned by Nevada silver heiress Theresa Fair Oelrichs in 1902, its modeled after the Grand Trianon at Versailles.

The ballroom at Rosecliff is its crown jewel.

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Compared to the earthier Hudson Valley estates, Rosecliff is a theater of white stucco and sweeping terraces.

Theres nothing subtle about it Rosecliff was built to entertain, not blend in.

Inside, the ballroom added specifically for Mrs. Astor is the heart of the mansion.

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Beechwood is a relic of a very specific social order, one where pedigree and propriety ruled.

Built in 1852 for China trade magnate William Shepard Wetmore, it was Newports first taste of grand-scale opulence.

Italianate in style, the mansions stone facade and symmetrical form set it apart from its flashier successors.

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Inside, Chateau-sur-Mer is an experience in old-world craftsmanship.

Designed by Richard Upjohn, the mansion is all pointed arches, steep gables, and decorative woodwork.

Built in 1894 for Oliver Hazard Perry Belmont, a banking heir with a taste for medieval grandeur.

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But inside, things got stranger.

It was part hunting lodge, part homage to old-world chivalry.

Ochre Court

Ochre Court, commissioned by banker Ogden Goelet, is where French Gothic opulence meets oceanfront indulgence.

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Outside, its an Italian Renaissance fortress with marble pillars and an endless ocean view.

Walls are covered in silk and chandeliers drip from every ceiling.

The Breakers was a message that the Vanderbilts were top of the social food chain.

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The Hudson Valley mansions are stately gems, where vision and reverence for nature define every column and cornice.

Kykuit, the Rockefeller estate, is the crown jewel here, designed with an appreciation for balance.

Inside, its equally thoughtful: art-filled galleries, sculpture-lined hallways, and rooms that seem to breathe history.

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Then theres Olana, the Persian-inspired estate of Frederic Edwin Church, one of Americas great landscape painters.

Church oversaw every detail, from the Moorish arches to the hand-painted tiles.

Each one a unique blend of architecture and landscape.

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The inside is equally unique, packed with elaborate woodwork, Tiffany glass, and hand-painted wallpaper.

When times got tough for the Suckleys, they held onto Wilderstein rather than sell out.

In fact, the familys most famous member, Margaret Daisy Suckley, lived here until 1991.

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Georgian-style the manor keeps it classic with white clapboards, clean lines, and views of the Hudson.

During the Revolutionary War, British troops torched the place, but the Livingstons rebuilt.

But Montgomery Places real pride is its grounds 200-plus acres of landscaped gardens, trails, and waterfalls.

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Locust Grove Poughkeepsie, NY

Locust Grove is a genteel 1850s Italianate villa with a surprising tech twist.

Inside, its a blend of charm and comfort with book-filled rooms and understated art.

Theres even a library where Morse dreamed up his Morse code.

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Its low-key but loaded with history.

But like many Gilded Age mansions, the Mills Mansion didnt stay in the family forever.

Vanderbilt Mansion Hyde Park, NY

The Vanderbilt Mansion in Hyde Park is the definition of Gilded Age swagger.

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Frederick hired the architects at McKim, Mead & White to craft this classic Beaux-Arts palace.

The interior features marble fireplaces, mahogany paneling, and tapestries.

The exterior is textbook Federal symmetry, clean lines, and big, welcoming windows.

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Lyndhurst Mansion Tarrytown, NY

Lyndhurst is Hudson Valleys Gothic Revival superstar.

Inside, its a feast of dark wood, stained glass, and vaulted ceilings.

Its opulent, but in a moody, atmospheric way thats more brooding than blingy.

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Built in 1913 by oil tycoon John D. Rockefeller, this hilltop mansion isnt flashy; its refined.

Designed by architect William Welles Bosworth, Kykuit blends classic stone architecture with Hudson River views.

Elegant, restrained, and filled with art, Kykuit is Rockefeller class turned into architecture.

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