The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

The site of Paul Revere's historic two lantern warning.

The massive machine creates cracking displays of indoor lightning.

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

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.