A bright little alley in La Boca is a part of tango history.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

A historic ruin just 20 feet away from a busy highway onramp.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

This memorial honors those who served on Gallops Island Radio Training Station during the second World War.

This statue intended for children to enjoy became a minor political spat.

A school used as a model for public education across the country.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

This historic Boston building has gone from personal estate to porn theater and back again.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Dedicated to one of the darkest moments in Irish history.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The infamous Boston Mob ran rackets from an office here in the 1970s.

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

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

Tragedy on Little Brewster Island memorialized.

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.