A snowy highland notorious for unexplained aircraft crashes is France's own Bermuda Triangle.

The site of one of history's most indelible and horrific tragedies.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

This unusual apartment building may be Brooklyn's own version of the Leaning Tower of Pisa.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This cemetery holds the remains of an accused witch and the man that ensured her freedom.

The first museum in the United States dedicated entirely to posters.

The former hotel where Tesla invented the radio.

This small, hidden cove is home to abandoned boats.

Have a steam and some blini at this cafe in a century-old bathhouse.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Unrepaired walls from a 1920 anarchist bomb attack.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Cryptic messages embedded in the New York City sidewalk.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."