A fitting tribute to a beloved local boxing coach that's produced four world champions.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

In the ancient Woolley Woods, an art project promises access to new worlds.

This tribute to a beloved cricket umpire is a magnet for risqué pranksters.

This industrial museum is based on one of the oldest standing iron forges in the U.K.

This museum sits on the site of a decommissioned military communications base.

Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

A quartet of rusting satellite goliaths are all that remain of a communication network that protected Britain from German and Russian air strikes.

This unique museum is housed in a rare example of an early 19th century prefabricated cottage.

The remains of a majestic house that was once stood in the crosshairs of the Irish Republican Army.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.

A stunning Victorian abbey and walled garden on a lakefront.

This ancient Irish landscape boasts hundreds of legendary ruins.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

Achill's most recently abandoned village dates back to to the Age of Enlightenment.

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.