Inside Princess Diana's Abandoned Childhood Home: Park House

The Rockefeller Mansion the Family Dynamited Themselves: The Eyrie

Inside The Rockefeller Heiress's Italian Palazzo That Vandals Reduced to a Ruin: Villa Turicum

The Second-Largest House in America, Dumped Into the Hudson River: Rockwood Hall

Inside The Cursed British Palace With A Private Zoo The Owner Abandoned: Haggerston Castle

Inside The English Mansion Britain's Richest Son Built and Lord Byron Envied: Fonthill Abbey

Inside The Country Estate Winston Churchill Chose For His Secret Army (Before It Burned Down

Inside The Demolished $25 Billion Dollar Gilded Age Palace Buried Under a California Suburb

Touring The Demolished Scottish Private Island Fortress in the Hudson River: Bannerman Castle

Inside The Highland Castle Built on the Ruins of 15,000 Homes: Dunrobin

Inside The Rothschild Mansion Where "Wild Circus" Parties Were Thrown By The Family Bachelor

The Secret £850K Cottage Queen Camilla Bought During The Affair: Ray Mill House

Inside Queen Victoria’s Most Private Royal Home: Osborne House

The Royal Wedding Gift the Army Was Ordered To Destroy: Delnadamph Lodge

The Controversial Mansion Behind the Queen Mother's Favorite Jewels: Polesden Lacey

The First Home the Queen Mother Couldn't Wait To Escape: White Lodge, Richmond

The Queen Mother's Ancestral Castle the British Army Blew Up for Demolition Practice: Streatlam

Inside the British Mansion a Duke Was Forced to Auction Down to the Carpets: Stowe House

Inside the Underground City a British Duke Built So He'd Never Have to Be Seen: Welbeck Abbey

Inside The Newport Mansion that Ended Gilded Age of Manners: Crossways

Inside The Paris Apartment Where The Most Beautiful Woman In Europe Lived In Total Darkness

Inside The "Fake" Palace The Richest Woman In The World Built (Then Never Lived In It): Sumiya

The British Mansion Where The Last Empress Of France Outlived Her Husband and Son: Farnborough Hill

Inside The "Forgotten Vanderbilt Mansion" That Was Torn Down While The Owner Was Still Living In It

Inside The Country Palace The Dukes of Newcastle Demolished In 1938 Leaving Only The Chapel Standing

Inside The Palace Britain's Richest Family Walked Away From (Then Tore It Down): Trentham Hall

Inside The Royal Scottish House Queen Victoria's Son Hated (But The Queen Mother's Greatest Love)

The Rothschild Mansion The British Government Refused To Save... Then Watched Sell For Pennies

The Royal Cottage Queen Elizabeth Had To Give Harry and Meghan (Then Charles Took Back)

Inside The Demolished Royal Mansion Queen Elizabeth Gave Prince Andrew: Sunninghill Park

The Castle the Queen Mother Bought After the King Died... and the Life She Built There Alone

Inside Britain’s Richest Demolished House The Grosvenor Family Erased

The Royal House Princess Anne Used To Escape the Palace Machine

The Queen Mother's Childhood Home Had a Monster Hidden Behind the Walls: Glamis Castle

Clarendon Court: The Newport Mansion Where Sunny von Bülow Was Found Comatose and Never Woke Up

Inside The Palace Where Princess Diana Recorded Secret Tapes and Planned Her Revenge on the Royals

Inside The Royal Family's Scottish Castle That Is Now Falling Into The River

Why The Most Exclusive Club In 19th Century Paris Vanished In A Single Generation

The Dark Side of Blenheim Palace: The Duchess They Evicted, Disfigured, and Erased From History

Inside The Mansion Where Rasputin Was Lured, Poisoned, Shot, and Drowned: Yusupov Palace

Why Britain's Most Magnificent Country House Burned and Was Left to Rot for 40 Years: Witley Court

Why The Dukes of Hamilton Demolished Britain's Greatest Palace When They Sold the Coal Underneath It

The Vanderbilt Chateau That Won The High Society War… And Then Vanished Without A Trace

Inside the Dupont Circle Mansion That Terrified Every Politician in Washington

Inside The Secret Farmhouse Where the Royal Family Kept a Prince Hidden

Inside the Caribbean Villa Princess Margaret Was Forced To Build Herself

Inside the Hospital Where British Aristocrats Hid Two Cousins for 46 Years (Then Declared Them Dead)

Why Marion Davies Was Erased From The Mansion Built For Her: The Hearst Castle Secret

Inside The Mansions The Royal Family Paid For To Keep The Duke of Windsor Silent

The Gilded Age Mansion Built On Gold Rush Money And Destroyed In A Single Afternoon

The Hollywood Mansions Where the 'It Girl' Fell Apart: The Homes of Clara Bow

Inside The Gould Family's "Old Money" Mansions

The Tudor Mansion Where The World's Richest Man Hid From Everyone: Sutton Place

The Gilded Age Mansion Where 5 Family Members Died In 3 Years: Franklin Castle

Inside The LA Mansion Where The Black Dahlia May Have Been Murdered: The Sowden House

Inside The Newport Mansion Where America's Richest Woman Killed Her Designer: Rough Point

The Gilded Age Mansion That Became A Cult Leader's "Heaven": Woodmont

Inside The Vanderbilt Mansion That Was Left To Rot

The Royal Homes That Built Britain (Documentary)

Inside The Astor Family's "Old Money" Mansions (You Can Visit Today)