These two 15th-century metal rods allowed people to check if they were swindled or not.

One of the most notable figures in the Wurstelprater’s history is often assumed to be a fictional character.

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

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A silly medieval mural preserved on the side of a Viennese house.

Legends surround an ancient tree trunk riddled with nails for good luck.

Baroque celebration of the end of the Great Plague of Vienna.

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

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Thousands of flowers create enchanting pink tunnels over the city streets.

A bright little alley in La Boca is a part of tango history.

Constructed on the ruins of a convent, this tower saved countless lives.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

The narrowest house in Buenos Aires is less than 10 feet wide.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

A medieval gate once used as a prison and how home to a city museum.

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

This 18th-century sundial was designed to calculate the date of Easter each year.

An unusual number plate signifies the building's saucy past.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Paris' fabled purveyor of exotic taxidermy and natural history curios.