A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A beautiful and classically designed villa, with an hourly infestation of monsters.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Limestone grottoes turns everyday objects into stone.

Wander among the abandoned ruins of this once-powerful medieval town.

The smallest chapel in Europe is a moving testament to the love between a husband and wife.

The remains of a concrete ship sit on a sandbank between Ballina Quay and Belleek Woods.

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

The largest stone circle in Ireland.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

The remains of a 13th-century Franciscan friary have survived multiple attempts at destruction, most recently in 1921.

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

Fantastic stainless steel dragon gates complete with mesh wings.

This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

A stunning medieval castle owned and restored by the famed actor Jeremy Irons.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

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

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

A massive Celtic cross secretly growing in an Irish forest.

This Neolithic passage tomb forms part of a World Heritage Site.