This massive, ancient stone was disassembled and then put back together again.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

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

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

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

Elevated freight railway turned wildly successful urban park.

Tucked in the back of this amazing antique store is an important piece of medical history.