This ruined relic of the medieval city of Jahanpanah is a quiet oasis in the middle of New Delhi.

This other-worldly, lotus-shaped temple was a place of worship for Gurkha soldiers in the colonial British army

This tunnel entrance is built to resemble a grand castle but no one is quite sure why.

This memorial to the thousands of Indian dead during WWI was callously used for target practice during WWII.

On a remote footpath and surrounded by beautiful Sussex countryside sits Sussex’s smallest cemetery.

A motley, fantastical agglomeration of unlikely houseboats along the Shoreham-by-Sea riverbank.

Pop culture has helped to keep this iconic British building from being destroyed.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

This probably wasn't what Mao had in mind.

Once an art-deco theater, now a supermarket.

After being bombed and largely abandoned, this former railway workshop has been transformed into a lively market space.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Behind Hong Kong Stadium stands a memorial to one of the city’s most tragic disasters.

Singapore's oldest Hindu temple.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The abandoned transportation hub hides within the Glasgow attraction it once served.

The secret centuries-old German cemetery in the heart of the Vatican.

Breathtaking and huge 430 year old maps of Italy.

The world's second-tallest flagpole stands proud despite dropping rank.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.