A men’s restroom became a sandwich shop.

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

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

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

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

This historic patch of real estate offers a glimpse of colonial Boston.

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

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

The location of one of the first private Catholic schools in the country, providing a valuable sanctuary during the tumultuous period when Protestant and Catholic students were at odds.

This water tower commemorates the invention of the transistor on this site in 1947.

The first dish to bounce radio signals off the Moon, it was the forerunner to the U.S. Space Program.

Mysterious 500-year-old tapestries depict a unicorn hunt.

The famous author's cottage hideaway.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

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

This ancient Egyptian obelisk still bears the wounds of World War I.

Go inside to really appreciate this 500-year-old technological masterpiece.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.