Hillsborough lies on a stretch of Interstate 280 that has been christened by many as "the most beautiful freeway in the world." With its wooden slopes and charming rural setting, it is host to some of California's wealthiest residents. The town is home to some of the country's largest estates, once owned by such famous residents as William Randolph Hearst and Harriet Pullman. Due to the town's minimum lot size of a half-acre, Hillsborough is known for its residential neighborhoods and single-home landscape. 2010 saw Hillsborough celebrating its 100th anniversary with parades, festivals and dedications. Hillsborough is big on community and preserving the natural beauty of its rich topography. Although an affluent community, Hillsborough has a small town charm. With its quiet back-to-nature atmosphere and multi-million dollar homes, it is one of the country's most desirable places to live.