Location: Emerald Island, New York
Purchased: $7.5 million*
Current Value: $10 million*

Actress Brooke Shields no doubt enjoyed the peace and solitude of Emerald Island, her 8.5-acre island that is off the coast of New York. Shields owned a rustic estate on Emerald Island, which cost $7.5 million in 1999. Her Old English estate contained a lot of chimneys and old wood paneling, which created a peaceful ambiance.

The island came with a small, private dam lined with trees that connected the island to the shore. The island sits in the middle of the blue-watered Chazy Lake, which is part of the Adirondacks, a popular site for hiking, fishing, and sightseeing.