One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This stunning mass of ice spans 121 square miles and is still growing.

A historic freight system that found the true gold rush is in tourism.

Walk 2,300 feet above the ground on the "Troll's Tongue."

Earth's greatest purely vertical drop at 4,101 feet.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

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

A corkscrew-shaped barn in Ireland.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

The lake that fills and empties itself at random.

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

Obelisks and stone pineapples in the Irish countryside.

Wallabies live naturally on this Irish island.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Petrified footprints of one of the very first vertebrates to walk on land.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.