The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

Abandoned station along an ancient pilgrimage route.

A vast and unlikely aviation museum kept alive for over 50 years due to one man's tenacity.

A stunning fountain depicting a mythological she-goat carved directly into the rocks on the grounds of a Renaissance palace.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

This house was once the location of Frelinghuysen University.

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

The hilltop town of Segni was once home to an ancient Roman colony and garrison.

One of the largest collections of Catalan literature and cultural materials outside of Spain, created by a community of 1960s expats.

This stretch of the ancient Roman road is preserved in a valley that witnessed many battles and legendary highwaymen.

Knights Templar are visible inside this stunning Cistercian abbey.

Whimsical sculptures and caves chiseled by nature over the millennia.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

These medieval monastery ruins are surprisingly overlooked by most tourists.

A huge Megalithic chamber tomb located behind a cafe.

The graves in Florida's oldest Black cemeteries are marked with shells, stones, and mementos of the deceased.

This castle was once the home of one of the most powerful women of the Renaissance.

Nestled in an unassuming residential area, this "forbidden forest" is rumored to spirit away those who dare to enter.

This crack in France's seaside cliffs once hid a sinister secret.