“Make yourself at home” may be a refrain heard in guesthouses the world over, but it takes on new meaning when it comes from one of your host country’s wealthiest families and when your temporary “home” is their mansion. The Buyukkusoglu family, who made their fortune in the automotive industry, converted their 48,400-sq-ft modern manor house in Bodrum, Turkey, on the edge of the Aegean Sea into a 12-suite hotel, and in 2007 opened it to paying guests as the Casa Dell’Arte, www.casadellartebodrum.com.