Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The world's second-largest sundial, made entirely out of stone.

Macabre astrological automaton clock dating to the late 1400s.

Go inside to really appreciate this 500-year-old technological masterpiece.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Get a privileged view over Mexico City's Historic Center from a terrace right in its heart.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This mountain's identity is stuck somewhere between a nightmare and a scenic tourist attraction.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

The stunning interior of this Gothic church is covered in ornate gold details.

Ancient catacombs form the foundation for this Rococo orgy of a church.

A village of art and exotic creations.

A remarkably opulent mansion with a tragic history.

This abandoned Victorian-style house was built in 1884.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

The Egyptian-inspired last resting place of Lord Kilmorey.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This grubby wall is said to be one of the Earth's esoteric energy centers.