This is the oldest Roman-made bridge in the city still existing in its original state.

This curious, round temple is the oldest still-standing marble building in Rome.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

One of the most historical literary characters continues to stroll his hometown.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

This extensive collection covers thousands of years of Polish military history.

A bibliophile's heaven that contains hundreds of bookstores, offering over a third of secondhand books for sale in Tokyo.

These sculptures were created by a 17th-century artist who had never seen an elephant.

See no evil, hear no evil, speak no evil.

Is this cat asleep or just pretending?

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Burial mound for the ears and noses of thousands of mutilated Korean soldiers.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

This statue of Buddha has a distinctive hairstyle meant to represent an unfathomably long period of meditation.

This kitsch-forward diner is dedicated to an almost-forgotten “one-cent” prototype of okonomiyaki.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

The 10,000 Torii shrine.

An ancient Greek physician is honored as a god at this hole-in-the-wall shrine.

A small shrine dedicated to a god of lightning and electronics.