With more than 2,000 pieces, this is world's largest collection of artwork inspired by Leonardo da Vinci's 'The Last Supper.'

The abandoned medieval theme park was meant to be the "Disneyland of the Philippines."

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

A geothermal energy project gone wrong is fracturing the city's picturesque architecture.

The first KFC is on the National Register of Historic Places.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

This 600-year-old home seems to defy physics.

The first (but not only) upside-down house in Germany.

An all-female order shares an ancient culinary art with visitors at their mountaintop monastery.

This small town was built around a marble quarry and named after one of the most famous sources of marble in the world.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

An abandoned observatory in the middle of the Illinois prairie.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.

Come for the waffles, stay for more waffles.

A ruined Maya city that suffered a years-long case of mistaken identity.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Arguing within this idyllic, circular volcanic lake is forbidden.