Neil Patrick Harris & David Burtka – $5.5 Million, East Hampton

Another one of Hollywood’s favorite couples, Harris, and Burtka, actually have a number of real-estate investments. However, their favorite is still their $5.5-million castle in East Hampton. The vast 13.5-acre landscape of the area, together with forests and waters, a swimming pool, cabana, lily pond with a tea house, and tennis court serves as the couple’s retreat place. In spite of the high maintenance of the property, the couple doesn’t seem to have any plans of selling it anytime soon.