This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

This museum preserves the heyday of Puerto Rican coffee.

Enjoy the waters of this half-moon-shaped natural pool surrounded by breathtaking scenery.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

This colorful gate stands as an entrance to the walled city of Old San Juan.

Archaeological sites and great food inside the island's largest mangrove forest.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

An unnatural lake in a naturally beautiful setting.

This iconic Lancaster everyman has been reading the same story since 1980.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

This sculpture forces visitors to confront their relationship with space.

An art deco ice cream shop covered in vintage train station tiles.

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

Statue dedicated to the star of an old television show.

This striking art museum holds an amazing series of curiosity cabinets.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Elevated freight railway turned wildly successful urban park.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.