The site of detentions and torture under the Pinochet regime in Chile is now a memorial.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Fortified medieval tower house with lovely roof garden.

The naturally mummified body of a peasant girl saint.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This curious, round temple is the oldest still-standing marble building in Rome.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

A Nesting Doll of Churches.

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

The final resting place of the poets Shelley and Keats.

Architectureal fantasy quarter of Rome.

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

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

This extraordinary art museum is like a secret world on the edge of Mexico City.

The tallest tower in Cáceres's Old Town.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

A lush indoor jungle fills this bustling Madrid transportation hub.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Four cars from the old system were once on display, but were removed in 2014.

A Red Hook dive bar that is holding onto its roots.