The mansion and the museum are open every day from 10 a.m. to 5 p.m. Entrance to the mansion costs $45 for adults, $20 for children between 6 and 17 years old, and $15 for children under 6.

You're not seeing double! Two megamansions on Miami Beach 's uber exclusive Palm Island are being offered for one astronomical price after splashing on the market this week for $99 million.

Kykuit, a 40-room mansion in Sleepy Hollow, New York, belonged to the Rockefeller family. It was built in 1913 for John D. Rockefeller, founder of the Standard Oil Company.

The 56,000-square-foot mansion in Highland Park, Illinois, features 9 bedrooms, 19 bathrooms, a gym, a trophy room, a theater, a cigar room, a putting green, a tennis court, and a resort-style pool.

A 28-room Buckeye Lake mansion, for more than a century the grandest home on the lake, has landed on the market. Called the Wehrle Mansion, the three-story Tudor-style home towers over the eastern ...

Hot Property: 25-room Stevenson mansion for $4.25M 16 Merry Hill Ct. is a 19th-century mansion near Stevenson that has 25 rooms on nearly 3.5-acres. The Georgian home is listed for $4,250,000.

Coe Hall is a 65-room mansion that was built on the Gold Coast of Long Island, New York, in 1921. The home, built by insurance exec William Robertson Coe, is inside the Planting Fields Arboretum.

You're not seeing double! Two megamansions on Miami Beach 's uber exclusive Palm Island are being offered for one astronomical price after splashing on the market this week for $99 million.