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

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

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

Introducing the Green Fairy to her fawning masses.

The final resting place of New Orleans' most famous voodoo priestess.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The final resting place of the great navigator, or maybe his brother.

This small chapel is built of human bones and decorated with a golden skeleton.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

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

An enormous park-like oasis, full of famous Chicagoans' graves.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

A speakeasy takes on Chicago's drinking culture.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A science teacher's dream.

A six-story-tall golden pyramid, surrounded by a moat.