Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

This beautiful Cape Cod beach offers dazzling views and an interesting historical footnote.

A 19th-century smallpox cemetery is being reclaimed by scrub forest and sand dunes.

Mural fragments and various sculptures honor the longtime artist.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

A small self-proclaimed micro-state located on a piece of disputed territory between Croatia and Serbia, near Liberland.

This 15th-century church houses priceless works of art from a range of Croatian artists.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

This beautiful Croatian fortress is haunted by legends of forbidden love.

This 135-year-old weather station studied the effects of the climate on human health.

A self-proclaimed libertarian micro-state on a tiny bit of disputed territory between Serbia and Croatia.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

An ethereal glowing blue ocean cave in Croatia.

This memorial to local World War II heroes is slowly being reclaimed by nature.

The only known mosaic depicting the Greek god of sleep, Hypnos.

This World War I fortress is the perfect place to catch a Montenegrin sunset.

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

A forgotten monument to Yugoslavian freedom.

Humble beginnings for one of the world's most famous scientists.

Dive for drinks at Croatia's first and only underwater winery.

Longest fortress system anywhere in Europe.

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

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