Historic harpsichords, clavichords, organs, pianos, and more inside a deconsecrated church.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

This building features dozens of faces along its facade, although one is a bit chilling.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

Featuring one of the oldest collections of historic musical literature in the world.

A brutalist gem towering over the heart of Milan.

This little-known wall in Southampton stands as one of the most unique and personal monuments to D-Day.

The iconic blonde bombshell has a familial connection to this town in southern Norway.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The largest recovered section of Titanic sits in a hotel in Las Vegas.

A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

One of the oldest art supply stores in the United States.

An abandoned sawmill from more than 134 years ago stands testament to the ambition of one man.

Check out a hidden collection of vintage neon signs.

This enigmatic building features numerous architectural styles.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This super steep hike ascends 2,000 feet in less than a mile.

An unexpected alley with light shows and nature views.

In addition to over 80 vehicles on display covering over 100 years of motorcycle history, this free museum focuses on the people who ride and love these bikes.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.