Set against North Carolinas Blue Ridge Mountains, George Vanderbilts chateau-style Biltmore Estate ranks as the largest private home in America. (From: Photos: Americas Most Beautiful Home and Garden Tours) - Discovered this one while drinking coffee!
Burg Eltz Castle, Rheinland, Germany Burg Eltz is a medieval castle nestled in the hills above the Moselle River between Koblenz and Trier, Germany. It is still owned by a branch of the same family that lived there in the century, 33 generations ago.
Santa Maria del Fiore Cathedral, - the fourth biggest church in the world with its large dome of 42 meters in diameter by famous Renaissance architect and engineer Filippo Brunelleschi / Piazza del Duomo, Florence, Italy.