This sprawling collection of saintly relics includes such fascinations as wood from the Cross of Jesus and threads from Mary's veil.

This abandoned villa of makeshift buildings was once the home of dancer Elis Sinistö.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

A beautiful oddities shop crammed with strange and morbid curiosities.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Hidden deep in a forest is this geological wonder carved by glaciers.

Nuclear waste experts study this prehistoric crater lake to envision landscapes one million years in the future.

This intricately spiralling forest was created as a monumental work of art.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

Finnish lake, and scene of an infamous murder mystery.

Crawling into this primordial cave may feel disconcertingly familiar.

This lake-bound geographical marker sits at the point where three European countries intersect.