The world's oldest soul food restaurant is also one of its best.

The towering figures were created from the cemetery's fallen old-growth trees.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

This lovely pocket park is one of the most under appreciated in D.C.

Perhaps the most scandalous statue of America's first president.

A nostalgic bibliographic gem.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A wondrous old library overlooking the nation's capital.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

One of the most important yet well-hidden museums dedicated to the history of medicine.

The Pope’s secret escape route.

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

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

A memorial to Brazil's little-known role in World War II.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

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

The largest and most famous wax anatomical collection anywhere in the world.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

The glowing blue Nymphaeum of Emperor Tiberius.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.