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

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

This abandoned ironworks was once the most important military supplier in America.

A crumbling hospital from the 1850s on Roosevelt Island.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

One of the world's oldest continually operating bookstores.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

A little sculpture with a large wardrobe.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

No one knows the origin of this creepy little stone man with an oversized phallus.

The final resting place for the remains of 143 Habsburg royalty.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A museum marks and documents the site of the Titanic's launch.

The world's oldest continuously operating record shop has been in Cardiff since 1894.

France's most famous cemetery, with some of its most curious tombs.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.