Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Created by a local artist, these quirky sculptures each have their own names and personalities.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A men’s restroom became a sandwich shop.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Historical structures and natural wonders await visitors to this preserve.

How did a massive marine arthropod find its way to landlocked Ohio?

The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

Spain's largest bullring offers a unique glimpse at architecture and history.

The Spanish king's private bathroom embraced the idea of a porcelain throne.

A haven for book enthusiasts across the street from Retiro Park.

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

A statue commemorating a beloved stray dog who was adopted by the entire neighborhood where he lived.

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

This little sun pays homage to a massive gate that once stood at this location.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

This girder was hit by a bomb during the Spanish Civil War, but nobody knew about it until 2016.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The world's largest wooden structure.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.