This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

The southernmost Anglican cathedral in the world has whale bones standing in its yard.

This haunting ghost ship stands beached in the waters off the coast of the Falkland Islands.

Where British troops serving on the remote islands paid tribute to their faraway hometowns.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Claude Monet was baptized in this lavishly ornate Paris church.

This demon atop the Notre-Dame de Paris looks utterly bored.

The historic Masonic Lodge in which the first-ever female Mason was initiated.

The curious underground history of keeping Paris clean.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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.

Indents in the pavement are all that remain from a grisly death machine in Paris.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

Taking the subway here means doing so over a bridge located in the middle of an estuary.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Turkish adventurer antiques in the heart of the Grand Bazaar.

A meow-velous tribute to a beloved street cat, made famous on the internet.

The ornate miniature mansions were built for Istanbul's feathered residents.

A marvel of Byzantine engineering under the streets of Istanbul.