The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A tiled, multi-level garden of survival in Lyon.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

This abandoned church in central Lyon is missing its front stairs.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

Monsters and miniatures are held in equal esteem at this wondrous museum.

Hundreds of hidden passageways weave through the old quarters of Lyon.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Inside this museum, Christians were imprisoned when the Romans controlled Gaul.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

This hidden garden boasts amazing views of Lyon.

Legend has it the mill owner's daughter, Mary Musgrove, helped a Patriot soldier hide behind these falls.

Step past the gas pumps and into a fine French bistro.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

A man's home is his castle.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

This angular brutalist playground turns playtime into modern art time.

A colorful square marks the heart of the city's LGBTQ community.

Scattered around Atlanta are little doors with big charm.