These cascading falls resonate throughout the Bulgarian forest.

At 22 feet tall, these Bronze Age monoliths are some of the tallest standing stones in the United Kingdom.

This mid-19th-century dugout was once home to a Swedish family as they erected their homestead.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

The widest natural waterfall in Estonia is a sight to see in all seasons.

A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

Unusually, this ancient Iron Age broch has never been excavated.

This ancient stone bridge dates back to the early Middle Ages.

A statue that would be at home in Rome can instead be found in the heart of Norway's oldest city.

Tucked away in this local museum is a piece of sporting equipment that dates to the 16th-century.

This Roman underground canal was the longest tunnel ever built until the late 19th-century.

For decades, a bottle factory dumped their waste into these waters—now it's considered the best sea glass beach in England.

A deserted medieval village where bodies were once mutilated to prevent them rising from the dead.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

Georgia's answer to Easter Island immortalizes the nation's great poets, artists, and leaders in stone glory.

This fine-dining restaurant features native New Zealand ingredients and Māori cooking.

This archaeological site built into a tuff outcrop is filled with rock dwellings, the ruins of a medieval castle, and a necropolis.

This network of roads is one of the most unique Etruscan creations ever discovered.

This island castle contains enough secret passageways to support a season of Scooby-Doo episodes.

These eerie outliers of the lightning bug family glow a mysterious blue color.

This church is named for one of the most dramatic tales in the early Christian church.

According to myth, there's a bloody explanation for the beautiful bright red color of this rock formation set amidst alpine vegetation.

On an island south of Iceland, a large volcanic rock formation resembles an elephant.