One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

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

For those late-night mollusk cravings.

The artwork commemorates the many ways 20th-century people perished while on the clock.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

10,000 flowered plants bloom in the City of Roses.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

A sculpture of a salmon swimming through a brick building.

Portlandia is the second-largest copper repoussé statue in the United States.

The magic's in the hole!

Impressive sink holes fill this untouched old-growth forest in the Bahamas.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

In the absence of a Chinese-language newspaper, for years the community posted daily updates on this simple bulletin board.

Couple's personal collection of pinball machines turned public pinball museum.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

Every summer West Seattle experiences a housing bloom.

Breathtaking and huge 430 year old maps of Italy.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.