This 13th century Orthodox monastery is built right into the Moldovan cliffside.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The dining hall that nourishes workers in Chernobyl's Exclusion Zone is also open to visitors.

Elevated freight railway turned wildly successful urban park.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

This charming woodland trail is peppered with poetry.

The highest peak in the state of Vermont has some interesting features.

A small chapel celebrating the spiritual bond between dogs and humans.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

An Irish Memorial commemorating those who perished due to potato blight.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."