Visitors dip into a variety of pools of what was once ice.

This aromatherapy shop and mini-museum cofounded by the Sigur Rós frontman documents Icelandic history through scents.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

This plaque tells the story of an event that took place in an imagined parallel universe.

This modern labyrinth lies in the shadow of a ruined medieval castle.

No one knows why ancient labyrinths were built on this tiny northern island.

A winding path built in secret on the edge of the continent.

A psychedelic labyrinth on the San Francisco bay.

The longest hedge maze in the world.

The largest axe on the planet contains a time capsule that seems like it may never be discovered.

One of the most easily accessible examples of the rare 1960s UFO houses.

How did a massive marine arthropod find its way to landlocked Ohio?

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

Giant granite sculptures representing family on the northern coast of Spain.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A hotel and restaurant serving as the mecca of kitsch.

One of the few surviving "Wigwam"-themed motels.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

This traditional Japanese-style house doubles as one of James Turrell's colorful works of art.

Survival capsules find a second life as a unique hotel.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.