Lego's gigantic 'Lego House' has brick masterpieces and a secret vault - here's what it's like inside

In Billund, Denmark, the fantasy of inhabiting a Lego house has become reality.

Earlier this October, Lego unveiled its new Lego House - a 130,000-square-foot building that is equal parts experimentation lab, prototype testing grounds, and shrine to the colorful bricks.

Here's what it's like inside.