Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

1,500 Commonwealth servicemen of World War II are buried or commemorated in this cemetery.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

Memorializing an American tragedy of massive proportions.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

This one-room cabin where the young colonel slept during the French and Indian War.

The trials and tribulations of marking Poe’s grave.

A memorial to an ill-fated Arctic expedition pursued by the U.S. Navy.

The highest point in Maryland is only accessible by hiking through another state.

A Nesting Doll of Churches.

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

A massive marble foot is tucked away in a small alley near the Pantheon.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This unassuming bridge is most likely one of Michelangelo's unfinished masterworks.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A huge enchanting public park just outside the ancient walls of Rome.

The charred, dead skeleton of an oak tree is said to have consoled a dying 16th-century Italian poet.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Breathtaking and huge 430 year old maps of Italy.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.