This impressive Boston holy house is the American mecca for Christian scientists.

Tragedy on Little Brewster Island memorialized.

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

This landmark cemetery in Boston was created more than 300 years ago.

These whimsical works of art tell the story of the city's past and present.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

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

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

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

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Famously misunderstood wonder of the ancient world

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

Couple's personal collection of pinball machines turned public pinball museum.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

A church of bones, decorated with 40,000 human skeletons.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

A silly medieval mural preserved on the side of a Viennese house.

Handsomely crafted representations of our round planet.

The final resting place for the remains of 143 Habsburg royalty.