The has two extraordinary features: a town on the roof that is complete with winding streets, squares, and turrets; and an interior double-spiral staircase built with a circle of 30 feet in diameter whose spiral staircases intertwine but do not .
A. Hardwick Hall
B. House of Jacques Coeur
C. Château of Chambord
D. Fontainebleau Palace
E. Château of Chenonceaux

The correct answer is letter "C": Château of Chambord.

Explanation:

Château of Chambord is one of the most representative castles of the French renaissance architecture distinctive by traditional mixtures of classic Italian structures. Located in Loir-et-Cher, France, was designed by Italian architect Domenico da Cortona (1465-1549) having among its main features the famous double helix staircase, salamander sculptures on the ceilings, and a 5,000  hectares park. It is believed Leonardo da Vinci (1452-1519) had influenced the design of the castle but history has not recorded it.

answer; /// the use of a bank credit card to make purchase;