Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

Thousands of years of crashing waves gave this mushroom-shaped rock its svelte figure.

Mound of stones marking the burial site of the world's most famous orca.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Walk behind a 50-meter-high waterfall.

The world's first and only escalator for lazy bicycles and their daunted riders.

Home to three historic ships from the age of Vikings.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

Spend the night in 1920s Latvia in this historic recreation and movie set.

These crumbling Latvian forts make for some haunting seaside ruins.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A decommissioned submarine base makes a great space for graffiti art.

This disappearing geyser has been attributed to witchcraft, but really it's all about rainfall.

Mysterious craters may have been home to an ancient cult.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

How this choice of tombstone came to be is still a mystery.

This Latvian shot factory is still used twice a year to manufacture bullets the old-fashioned way.

The mile-long pier stretches from a ruined fortress out into the Baltic.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This wooden recreation of a 9th century lake village looks as though it was built yesterday (which it relatively was).

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

Guests become prisoners on a visit to Latvian prison.

A black cat protests the City Guild in Riga's Old Town.