Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Monument to a suicide protesting the Soviet invasion.

The world's largest piece of copyrighted artwork.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

A centuries-old church stands as a testament to Boston's "father of architecture."

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 headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

Ice cream stand, snack bar, and time capsule of milk conveyance.

Stolen goods adorn the organ at Old North Church.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This automated sculpture of two men peeing will spell out text messages with their micturition.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Looming communist pillar with a Czech twist.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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