Some charming, but sadly, unloved animal statues call this park home.

Diego Rivera's massive tiled fountain and failed infrastructure project.

The only castle in North America to ever house European sovereigns.

Inside a busy metro station, an impressive mural depicts the prehispanic city of Tenochtitlán.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

Down a stairway in the East Village, you could once read a plaque describing an alternate history of a fictional version of Manhattan.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Walk over a 150 year old manhole.

An architect transformed this abandoned cement factory into his castle-like workshop.

A beautiful but toxic fountain of mercury.

This semi-secret storybook hedge maze is also the oldest garden in the city.

The ruins of an ancient Zoroastrian Tower of Silence believed to be the earliest example of the traditional funerary practice.

Inaccessible by foot, Japan's most secluded train station sits in the middle of nowhere.