The Mysteries of the Abandoned.

In the middle of which Bulgarian mountains is The Buzludzha Monument located?

© Photography: Stanislav Traykov

Where was Kinzua Viaduct, one of the tallest trestle bridges in the world found ?

An aerial view of Kinzua Viaduct, circa 1971. Ironically, for 24 years (1963-1987) the entirely intact structure was also used a foot bridge, part of the Kinzua Bridge State Park.

The abandoned site Hashima island near Nagasaki, Japan has one of which following nicknames?

© Photography: Jordy Theiller

4. Do you know why the city of Pripyat is a ghost town?

© Photography: Bobrbor

This is a photo of the Villa of Mysteries. Do you know where can it be seen?

© Photography: Stephanie Crowell

Which former capital of Monserrat is now an abandoned ghost town?

© Photography: tiqets.com

Which abandoned site is a fortified island in Manila Bay?

© Photography: atlasobscura.com

In the estuary of which river could you see the abandoned Maunsell sea forts?

© Photography: Russss /Wikimedia Commons

Abandoned Maunsell forts near the coast of Suffolk.

Because of what is The city of Centralia, Pennsylvania a ghost town now?

© Photography: thetravellingblizzards.com

Is this art-deco building the empty building of what was the Amsterdam Museum?

© Photography: designcurial.com