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

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

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A little piece of Paris in the sultry south of the U.S.

The largest ancient burial mound in Ohio.

Paranormal activity on the great lakes.

The seamy, underground secrets of Portland's criminal past.

A beautiful 62-acre Catholic shrine and botanical garden.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

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

Glass and concrete building designed by Albert Kahn.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The only surviving prototype for Buckminster Fuller's house of the future.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The bones of an old zoo crumbling in the shadow of a new one.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.