Small on the outside, big on the inside, this church is an astonishing act of visual deception.

A hidden courtyard houses early 20th-century plaster masterpieces.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Get fishing gear and craft beer at this restaurant on the pier.

An ode to the friendship between four Pacific Rim countries.

This 19th-century fountain's namesake animal isn't what you think it is.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

Be(w)ar(e) the moat around this historic Czech castle.

Locals say the stone that marks the spot where the gallows once stood can lead you astray.

Designed as a reminder of one of the darkest moments in Austrian history.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

A spherical "micro-nation" in the heart of Vienna.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The headquarters of the famous Yale society.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.