The capitol city's oldest existing cemetery.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

An abandoned, decaying sculpture garden built by an eccentric physician in the 1920s now looks more like a forgotten cemetery.

One person's lost luggage is another person's treasure.

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

A somber memorial at the site where hundreds of prisoners and civilians were executed in the aftermath of World War II.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

This medieval "painted village" is famous for its geometric facades.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

These ruins of a sacred Ancient Greek temple stand next to a luxurious modern resort.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

The Greek island's old British cemetery feels like a forgotten garden.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

This abandoned Greek island was the last active leper colony in Europe.

An abandoned Byzantine fortress and notorious prison.

Poseidon? No one seems to know.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

A two thousand year old brothel uncovered in Northern Greece.

An autonomous republic of Orthodox monks.