It's Free to Look: Just in Time for Kate and William's Wedding!

According to Corcoran, this Upper West Side co-op in the El Dorado boasts the finest views not only in Manhattan, but apparently "in all 'Earth's Kingdoms.'" For a little over $8.8 million, it and its four bedrooms and three bathrooms (and 360-degree panorama of Central Park, the Hudson River and the skyline of Fifth Avenue) can be yours.

SLIDESHOW: Your Own Private Kingdom