Modern megaliths form this work of cosmic, Celtic landscape art.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

A fernery hidden by neglect is uncovered, and an ancient specimen along with it.

This small museum in a 17th-century building honors three iconic Scottish writers.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This single-track road rewards brave drivers with stunning Scottish scenery.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A library where thousands of books explain how to avoid another Great Recession.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

The largest stone circle in Ireland.

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

The symbolic center of Ireland, this summit also offers panoramic views of the countryside.

This rare and ancient Christian relic is one of Ireland’s oldest freestanding stone crosses.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

This Copper beech tree nestled on a nature reserve is host to a bevy of autographs from Irish literary icons.

This museum is dedicated to the most famous Irish writers in history.

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

Ancient Bronze Age rampart that was used into the middle ages.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.