Crawling into this primordial cave may feel disconcertingly familiar.

The etchings on this narrow channel between two islands bear witness to maritime travelers who have passed through since the Middle Ages.

The Guardian of Tallinn.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

The labyrinthine home of the National Archives of Estonia is an experimental blend of architecture, art, and history.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Once standing on solid ground, this slender beacon is a victim of the very shoreline it was charged with announcing.

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

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

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

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.

This lonely Lithuanian chapel looks more beautiful and haunting in decline than it ever did in life.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

A narrow strip of land is home to the tallest migrating dunes in Europe.

Lithuania's outdoor sculpture trail of wooden folk art.

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

A unique museum dedicated to the famed Soviet director and other cinema greats.

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.

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

These crumbling Latvian forts make for some haunting seaside ruins.

Flamboyant architecture from the turn of 20th century.