No one knows how many bodies are in this vault in a Chicago public park.

Mining, a local filmmaker, and a philanthropist doctor all commemorated within a small space in suburban Edinburgh

The abandoned buildings of a hospital that saw most of its activity during the World Wars.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

France's most famous cemetery, with some of its most curious tombs.

At high tide this strange footbridge appears to have no purpose whatsoever.

A controversial cenotaph dedicated to a local physician with an unscrupulous past.

A recreation of pop art pioneer Eduardo Luigi Paolozzi's London studio.

The man who helped establish the first rules of golf.

A miniature of a lighthouse acts as a beacon for what transpires inside this location.

A roadway designed for a visiting monarch.

Reportedly the "most handsome" market cross in Scotland.

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

This former school is now abandoned and a canvas for graffiti artists.

A multi-storied painting that depicts the area's rich and diverse maritime history.

Aside from denoting a public square or market, this medieval structure was also a sign of a town's prosperity.

A former medieval fortress, now home to Edinburgh Napier University, contains a rather risqué work of art.

The remnants of a facade from a 19th-century market stall emporium.

This tablet indicates where the tragic monarch returned to begin her tumultuous downfall.

This 15th-century structure had a long, tortuous journey to its current location.

This carved memorial is dedicated to the miners who died working in the town's collieries.

The location of a citizen uprising that led to a gruesome act of mob justice.

Neon artworks light up this dark Edinburgh tunnel.

An ancient stone with mysterious origins stands in a residential neighborhood.