The headquarters of the famous Yale society.

A former copper mine which became a truly unsuccessful prison.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

137 graves holding New England's earliest residents.

The kind of mixed-up place that drives archaeologists crazy.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The intriguing personal collection of a professional demon-chaser.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

These strange large stones served as a campsite and lookout post for generations of Native Americans.

Step back in time on this preserved 1800s farm.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

This bridge is haunted by the ghost of a distraught mother.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

Hop on the train and tour an elaborate miniature town made completely of junk (including the train).

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.