Location: Lake Oswego, Oregon

Price: $15,000,000

Perched on a five-acre private island on Oregon's inland Lake Oswego, this stone mansion is surrounded by lush gardens and a swimming pool that make it a proper rival to the private island we profiled back in September. The only trouble is the $15,000,000 house is lacking any interior listing photos. Has the 1930s Tudor mansion been gutted and replaced with a post-modern muddle? Are all the dusty details perfectly preserved? Sadly, we may never know. This place is unique, especially for the Portland, Oregon, suburbs, and that gated stone bridge makes for one dramatic entrance.

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