Built or owned by Americans

Several Villas Were Built By Americans (Particularly Missionaries) In The Late 19th/Early 20th Century (See 359, 286 And 442 In The Link).
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"In 1910, The United Fruit Company Bought A Large Chunk Of The Motagua Valley, Including The Ruins Of Quirigua, To Set Up Banana Plantations. Fortunately, United Fruit Recognized The Significance Of The Ruins And Established An Archaeological Park Around It, Taking Great Pains To Protect The Site From Looters, And Organized The First Major Excavations Through The Archaeological Institute Of America."

Developed By The Braden Copper Company Which Was Founded In 1904 By Barton Sewell And William Bradon. " Barton Sewell Never Visited Chile And Was Limited To Participating In The Business As An Upper Executive At The Companies Central Offices In New York". By 1916, 95 Percent Of The Company's Stock Was In The Hands Of The Kennecott Corporation Owned By The Guggenheim Brothers.

"In 1894 The United States Consul To Yucatán, Edward H. Thompson Purchased The Hacienda Chichén, Which Included The Ruins Of Chichen Itza." He Studied The Ruins For 30years Before Being Charged By The Mexican Government With Theft From The Cenote Sagrado. The Lands Were Seized But Returned To His Heirs In 1944 And Subsequently Sold To Mexican Owners.

Following The End Of World War Ii, Bikini Came Under The Control Of The United States As Part Of The Trust Territory Of The Pacific Islands

"Kanton .... Was Eventually Abandoned After Serving A Brief Stint As A U.S. Missile-Tracking Station. Today, The Island Still Exhibits The Remains Of The Airline And Military Presence, With 41 Persons (As Of 2005) Residing There, Most Living In Abandoned Structures From The U.S./Uk Occupation (1936-1976)." (Wiki)

Under Us Control From 1945-1968 (They Introduced The Goats That Degraded The Vegetation On Chichijima And Mukojima)

"It Developed From The Early 19th Century As A Centre Of Commercial Activity By Americans And Europeans" (Ab Ev)

Finca 6 At Palma Sur Is Situated On Land Acquired By The United Fruit Company (Trading Under The Name Of "Banana Company Of Costa Rica") In The 1930s
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George Washington House (Actually Rented, Not Owned)
See Georgewashingtonbarbados.Org

"The American Model Was Developed By The American Battle Monuments Commission (Abmc), Created In 1923, Inspired By The French Architect Paul Philippe Cret, Who Emigrated To The United States In 1903" (Ab Ev)

The Musée Des Beaux-Arts De Nice Was Formerly A Villa Owned (1882-1925) By The American James Thompson, Who Named The Villa After Him: Villa Thompson. (Nomination File, P. 158)
See Fr.Wikipedia.Org

Nan Madol Is A U.S.-Designated National Historic Landmark. "As Part Of The Caroline Islands, Pohnpei Was Colonised By Spain In 1886; Ceded To Germany After The Spanish American War; Seized By Japan During World War I And After World War Ii Became Part Of The Trust Territory Of The Pacific Islands Under United States Administration In 1947. In 1979 The Former Trust Territories Became The Federated States Of Micronesia And As An Independent Sovereign Nation Entered Into A Free Association With The United States Of America In 1986." - Ab Evaluation
See Www.Worldheritagesite.Org

"They Were Mostly Built Around The Same Time, In The 1920s, And In Similar Circumstances, Their Owners Being Prosperous Émigrés From Malaya, Chicago, And Elsewhere Returning To Their Roots." - Ab Evaluation (Criteria Ii) "The Diaolou Represent In Dramatic Physical Terms An Important Interchange Of Human Values - Architectural Styles Brought Back From North America By Returning Chinese And Fused With Local Rural Traditions - Within A Particular Cultural Area Of The World."
See Www.Worldheritagesite.Org