A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

Paths are maintained, but trees have taken over plots.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

The Lowcountry color with the power to stop evil from entering a home.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

One of the oldest living oak trees in the Southeast.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Illegal drag racing two stories beneath Chicago’s streets.

These pretty kitties killed and ate as many as 135 railway workers.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

A bit of retro transportation flair preserved in the world's largest department store.

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

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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The final resting place of the great navigator, or maybe his brother.