This one-time health resort was used by aristocrats around the world.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

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

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

Where the lovelorn find a home for their sentimental keepsakes.

A quirky roadside sign was the subject of a years-long legal standoff over highway right-of-way clearances. 

Learn the history of Dominican rum production.

The first official clock in North America, it kept time for the Spanish government of Santo Domingo.

Built in 1512, the oldest cathedral in the Americas.

The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.

The beginning of the historic Iditarod Trail connecting the Alaskan cities of Seward and Nome.

A bust of the entertainer and politician sits in an alcove at the Palm Springs Airport.

This Transylvanian church has changed its denomination four times.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.