A hugely vast Irish landscape of barren rock that stretches for miles.

The ruins of a medieval monastery named after a type of tree.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

An encyclopedic collection of mammal penises.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

Medicinal spa created with the discharge from a geothermal energy plant.

A renowned Civil War veteran, this Bald eagle now presides over the Wisconsin State Assembly.

A statue honors the genius who allegedly first took a meatball and made it into a hamburger.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

A bypass decorated with large wooden troll carvings.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A unique botanical garden housed in three giant geodesic domes.

A lovely hidden waterfall right off the highway is well worth a stop.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

A bizarre house filled with an astounding array of collections.

Albuquerque found the perfect use for tumbleweeds at Christmastime.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

This cave holds a surprisingly colorful variety of geological oddities.