Dr Barnes' $25 billion private collection of art and arboretum.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

This private residence was the template for one of the most beloved television homes of all time.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

The only theatre in the world constructed specifically for sound movement.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.