One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

This shop for all your super spy needs hides an educational secret.

A local prank turned town icon.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Da Vinci's equestrian statue, 500 years in the making.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Secret refuge and museum of the Duke of Florence.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

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.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An early 20th-century bullring converted into a modern shopping center.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.