A historic observatory precariously perched at the "Top of Europe."

A touching tribute to the "Queen of Soul."

The only subway station in the city that still makes use of gap fillers.

An aptly-named street near the birthplace of the modern LGBT rights movement.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

A 300-ship graveyard, with a few still visible at low tide.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Olfactory delights in San Francisco's Botanical Gardens.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A huge musical instrument played by the ocean.

Avoid gangster interaction while window-shopping.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

On the Oregon coast there is a natural hole that seems to be draining the sea.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Elevated freight railway turned wildly successful urban park.