This small Estonian hill is covered in hand-made twig crosses that are said to bring good luck.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The gutted remains of this Estonian mansion are a monument to a tragic love.

Man-made mineral caves house massive bat colony.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

A trio of giant wooden megaphones turn up nature's volume in this Estonian forest.

Mysterious craters may have been home to an ancient cult.

Inside this medieval church resides a unique set of murals.

A unique two-level bridge designed to honor a king.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

A 2,000-ton rock resting in a state of a delicate balance.

The ghostly remains of an accidental sea.

A stone wall commemorates the legend of a ferocious dragon who literally got his butt kicked by a knight.

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

A Swedish farm is the world's only producer of the rare, creamy delicacy that is moose cheese.

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

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

These sculptures common among indigenous populations in North America, celebrate Shetland's unique geology.

A churchyard in Ardsley houses a memorial dedicated to the victims of England’s worst mining disaster.

The 16th-century son of Sienese nobility carved this hermitage out of volcanic rock.

An ancient burial ground believed to have been used for ritual sacrifice.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

Fascinating town where normal life interfaces with the occult.

The ruined abbey includes a rare surviving example of a monastic latrine.