This titanic steel chain linking two buildings was installed without permission but instantly beloved.

Considered by many to be one of the most dangerous highways in Alaska.

For decades these polar bears have roamed all around a Nashville neighborhood.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

This replica of the Greek structure is in the heart of Nashville.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

A French artist's vague warning hangs over Belleville.

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.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Unrepaired walls from a 1920 anarchist bomb attack.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The "Seinfeld" diner.

Elevated freight railway turned wildly successful urban park.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

The second oldest continuously operating bar in Louisiana.