This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Breathtaking and huge 430 year old maps of Italy.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A Nesting Doll of Churches.

Jesus' footprints and the first catacombs in the world.

Architectural monsters are devouring this palace's every door and window.

The final resting place of the poets Shelley and Keats.

2300-year-old Roman road connecting the empire.

Architectureal fantasy quarter of Rome.

Walk through Czech history in Prague's largest graveyard.

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

This Scottish manor house is a lush relic from the life of a literary great.

This cemetery features modernist statues as strange as its name.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The corpse bride of Portugal.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A cluttered and astounding collection of antiquities and curiosities.

Hear the quietest sound from across the dome.

The curios of pharmacist and collector Henry Wellcome.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.