Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

A forgotten "city of water" underneath the famous Trevi district.

Drink wine handed out through a window as part of an age-old tradition.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

A Milanese café entirely designed by the American director Wes Anderson.

Geothermal waterfalls in Tuscany.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The middle finger of modernity.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

A hidden subterranean installation offers a view of the sky.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The ship that got left behind.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

Live long and prosper in Tennessee.