Famously misunderstood wonder of the ancient world

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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.

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

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

This splendid tomb may look fantastic, but there's nothing in it...

This statue took 60 years to complete.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

Renowned restaurant tucked in a cave once occupied by buccaneers.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

Like Mardi Gras, only everyone's a pirate.

A building so large that it has its own weather.

This sandstone mansion was the home of two of Oregon's most important pioneers.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

What's that on the side of that building? Va Va Voom, it's Bettie!

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.