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 patch of real estate offers a glimpse of colonial Boston.

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

A unique music museum housed in a historic Boston theater.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

America’s oldest community theater, this Boston club has been in operation since 1877.

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

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

A beautiful Victorian-era cemetery, complete with a miniature village.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

One of the last Jazz Age "Wonder Theaters" in New York City.

One of only two remaining Victorian-era greenhouses in New York.

Finally, you don't have to be a pious Swedish seaman to relax like one.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Unusual books about food and drink abound in this 19th-century New York townhouse.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

This indiscriminate collection of audio antiques is trying to preserve the history of the audio industry one vintage appliance at a time.