The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This painted blacktop brings the classic arcade game to life.

This Seattle joint serves food inside an old train car once used by FDR.

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

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

One of the few remaining monuments dedicated to South Boston's Irish heritage.

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

A memorial to Chinese freedom in the city where American freedom was born.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A giant sculpture head with an optical illusion dedicated to the longtime conductor of the Boston Pops.

A pair of antique trolleys are on display at one of the oldest subway stations in the United States.

This mosaic commemorates the oldest subway tunnel and station in the United States.

Dedicated to the neverending mathematical constant, this plaque next to a park bench was sponsored by an anonymous benefactor.

Dedicated to a colonial woman who was hanged for being a Quaker.

The colonial home of Paul Revere during the American Revolution.

This steep slide at a kids’ playground went viral after an police officer tumbled down it.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

Interactive museum complete with costumed re-enactors and the only known surviving chest from the Boston Tea Party.

Created by a local artist, these quirky sculptures each have their own names and personalities.

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

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

Dedicated to one of the darkest moments in Irish history.