Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Hill-like structures formed by glaciers and sandy spits of land.

Second largest wastewater treatment plant in the country.

Last church of this militaristic WWII style.

Civil War Fort on an island in the Boston Harbor.

Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

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

A notorious punk house turned co-op.

If you were standing here on October 5th, 1950, you'd be dead.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A 125-meter long "tribute to the Brazilian people."

Beautiful public park off the beaten path and away from tourists.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

This impressive Boston holy house is the American mecca for Christian scientists.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Final resting place of the two women killed on a small island off the coast of New Hampshire.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

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

The hill that gave the Massachusett tribe, and later the state, its name.