There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

A former post office turned venue, food hall, and retail center.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

On the right bank of the Grand River a plaque remembers an imaginary painter who once awaited his youth.

Outside Grand Valley State University, you'll find a bench upon which many were said to have sat according to the fictional Kcymaerxthaere, waiting for a guide of time.

At Fountain and Division, in the shadow of Kendall College of Art and Design, lays the story of a fictional culture whose political system was used under license and who finally rebelled.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A famous big wave from Japan serves as a tribute to the victims of the disastrous Elbe flood.

When the rain falls, this drain system turns into a musical instrument.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

The bridge that cost Germany a World Heritage Site.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

There has been an astronomical clock on this spot since the 14th century.

A pink sandstone column once used in ancient times to measure one's belly after a night of debauchery.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

This tank participated in the liberation of Dijon from Nazi occupation.

For over 300 years this little carving has been the city’s good luck charm.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Paris' linguistic guide to the international language of, yes, love.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

An abandoned 1930s gas station turned bustling neighborhood park.