Giant marble phalluses on the sacred island of antiquity.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

These ancient ruins hide in plain sight next to a dessert shop.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

An artificial crater field that trained astronauts for lunar exploration.

An ancient octagonal weather station named for the eight Greek gods of wind.

The ruined doorway is a portal to the building's turbulent and torturous past.

One of the best-preserved medieval streets in Europe.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

An ancient knight and a symbol of the city's freedom.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

This severely painted building has a twisted connection to the witch hunts of the 1640s.

A remarkable feat of Victorian engineering across the Firth of Forth.

Where the sleeping monsters of Scotland's oil industry are left to rust.

Ancient pueblos built into the base of a natural canyon wall.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.