This is 99% invisible.

I'm Roman Mars.

Picture for a minute.

Los Angeles, the grand marquee's downtown,

with Spanish-style mansions in the hills,

that jetzons like diners and drive-ins.

Los Angeles is an architectural popery.

It's the kind of place where if you want to go and build a house that looks like a Dutch colonial

or a mansion with Doric columns or a sleek modernist flat roof thing,

that's fine.

Anything goes.

That's Avery Trouffleman.

In Los Angeles, architecturally, there are no rules, no unifying style.

Because for people flocking to Hollywood in the 1930s, 40s and 50s,

the growing city gave them an opportunity to build whatever kind of house they wanted,

French chateau, futuristic modern, Italian villa, whatever.

And there was this one particular architect who could do it all and do it well.

And his name was Paul Revere Williams.

Paul Williams' contribution to American architecture can be described in a number of different ways.

Mrs. Architect Phil Freelon.

He was an incredibly gifted residential designer.

And on the West Coast, particularly in Los Angeles,

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