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

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

This natural sea arch highlights Ireland's rugged coastal beauty.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

An adorably sweet display of sculpted Precious Moments figurines.

The Quapaw tribe supplies the meat and produce in this Oklahoma casino restaurant.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

The fifth-longest natural arch in the world, and the longest outside China.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

This amazingly preserved Gold Rush town is a historian's dream.

A few dilapidated structures are all that remain of this deserted former silver mining town.

This set of hot springs also comes with fantastic views.

This museum glorifies the humble potato.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

This large midwestern cavern features impressive rock formations and an underground waterfall.

This metal shop's yard is filled with cutout art including an Eiffel Tower replica and Noah's Arch.