Narrowest house in Boston.

This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

Tragedy on Little Brewster Island memorialized.

An eccentric inventor's castle home with its own indoor weather system.

Friction between grains of sand cause a curious "singing" sound.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Visit a sweet shop selling one of the first candies ever made and sold in America.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The bronze uniforms commemorate the vital role of women during World War II.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.