Take a tour of a $45 million Los Angeles mega mansion featuring sleek modern design and a luxurious outdoor spa.

While most Americans are drowning in debt or struggling with rising housing costs, the world’s tech billionaires are living in luxury mega-mansions that would make the Gilded Age robber barons blush.

Take a tour inside a luxurious €32 million Mediterranean mega mansion in the heart of Ibiza, Spain.

All-access pass inside America's most enormous, opulent and advanced Mega Mansions. We're traveling from coast-to-coast to these one-of-a-kind mansions and their never before seen vaults, hideouts,and ...