Located about ten minutes on foot from the bustling Portobello Market, this oasis of calm is one of London’s 'Magnificent Seven', the large Victorian-era garden cemeteries established around the city to address the overcrowded and disease-ridden churchyards of central London in the early 1800s. Inspired by the grand Père Lachaise Cemetery in Paris, Kensal Green was built in 1833 and now houses approximately 250,000 individuals in over 65,000 graves. Composed of gothic mausoleums, crooked tombstones, and underground catacombs, the cemetery is filled with stories of London's past.

In the summer of 1518, a strange occurrence took place in the streets of Strasbourg. It began with one woman. A lady named Frau Troffea began dancing uncontrollably, with no reason or even music to incite her. Others who witnessed her dance found themselves drawn into the mayhem, with reports of over 400 people taking part. Spectators at the scene described the dancers as if they were convulsing, thrashing their limbs about, and appearing vacant-eyed, like one possessed.

High up on a hill in Buda, overlooking the city of Pest across the Danube, lies the Castle Hill area of Budapest. This historic site has seen numerous sieges and bloody battles throughout its long history, which are echoed in its cobbled streets and ancient buildings. And beneath its floors lies an even more sinister past as it was once the prison for Dracula himself.

Deep within the jungles and underground caves of Quintana Roo, along the Caribbean coast of Mexico, the crystal-clear blue waters of the cenote entice visitors to enter their cool depths. These ancient cenotes were essential to the survival of the Mayan people who believed them to be sacred gateways to the underworld below.

Escape the heat and hustle of the city and delve down 52 stone steps into an underground cavern, just next to the Hagia Sophia in the historic center of Istanbul.

This grand cemetery in North London’s borough of Camden first opened its gates in 1839 and has since become the final resting place for around 170,000 individuals buried within 53,000 graves.

Welcome to the mind of Viktor Wynd. Delve down a steep spiral staircase, underneath an Absinth bar in East London, and you will find a unique collection of curiosities both interesting and macabre.

The theatre was connected by doors to the women's ward at the hospital from where patients would be brought into surgery, blindfolded, and held down by several men on the wooden table, ready for their operation.

‘Stop! Here is the empire of death’ reads the inscription above the entrance into the Paris catacombs where over 7 million Parisians now lie.

The Red Sand Sea forts form part of the Maunsell Sea forts and constitute one of the three defensive structures built in the Thames estuary.