Hollywood heartthrob Brad Pitt loves to pamper his children and even their pet rats lead a luxurious life with the actor spending 50,000 pounds on building a playhouse for them. The 45-year-old actor is fascinated by architecture and personally oversaw the construction of the bespoke run which consists of a maze of tunnels, seesaws and platforms, the Sun reported online.

"Brad pores over architectural journals like other people pore over newspapers. He had so much fun putting the run together with his kids Maddox, Zahara, Shiloh and Pax," a source said. The 'Inglorious Basterds' star's love of architecture is well known and he put his heart into the construction of the project at his family's French estate. "It's incredibly complex and cost a lot but Brad's more than happy with any activity that can combine his two passions, his kids and architecture," the source added.