This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

A wild trout fishery in Arkansas.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

A (slightly) grownup take on the classic retro arcade.

A colorful architectural gem in Seattle's uniquely modern Central Library.

This mouldering abandoned mental hospital was once a center for progressive healing.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

The loneliest island in New York.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Underground tunnels remain beneath this abandoned mental asylum.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

An abandoned asylum where patients have been forgotten but their possessions remain.