This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

A field of nothing but boulders which resembles a giant's gravel driveway.

This jail which was in service for over a century is now open for curious visitors.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

It would take 35 firetrucks to fill this enormous glacial pothole.

This elaborate towering structure was once famed for its revolutionary height.

This park contains a number of standing stones meant to heal and inspire.

Yo, Adrian!

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Two plaques commemorate the site of Shakespeare's first theatre.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

An artistic tribute to the famous singer, just around the corner from where he was born.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

A hands-off space for graffiti artists to hone and display their skills.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.