45 West Clinton Avenue

The listing goes right ahead and calls this "one of the most visually unique homes in the world," and it'd be hard to argue with that. This is known as the Armour–Stiner House, or the Carmer Octagon House, a unique octagon-shaped and domed Victorian style home located in Irvington, a town of Westchester County. It was built in 1860 by financier Paul J. Armour, enlarged between 1872 and 1876, and is now the only known residence constructed in the eight-sided, domed colonnaded shape of a classic Roman Temple. The current owner, Joseph Pell Lombardi, a preservation architect with his own firm, has listed it for rent asking a hefty $40,000 a month.
See the breathtaking interior