Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

Yo, Adrian!

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

The largest earthwork effigy in the world.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

The celebrated eyesore created by starry-eyed sweethearts.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

This bridge was constructed from the rubble of the infamous Bastille.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

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.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The very center of Paris is surrounded by a bevy of strange good luck rituals.