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

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

Tragedy on Little Brewster Island memorialized.

One of the indelible moments of the American Revolution took place at this location.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

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

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

Painstakingly built dioramas sit unnoticed in a Boston office building.

The bears may be gone, but their old cages can still be found.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

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

Dim sum, served in a grand old theater.

The Boston square dedicated to the dark poet who was born nearby.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

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 powerful tribute to the victims who suffered under Ethiopia's most devastating regime.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Iran's colorful terraces are a rare geological masterpiece.

There's a crumbling old mansion inside the Smithsonian National Zoo.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.