An obscure waterfall that looks like something out of a fantasy novel.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

A whimsical village of unique treehouses resides in a Washington forest.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

The longest continuous lava tube in Oregon.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A bigger-than-life pun that has become a beacon of altruism.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

The largest permanent Monopoly board makes one of the longest games even bigger.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

The largest greenhouse in the world is home to over one million types of plants.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Travelers exchange letters with woodland creatures at this mini post office.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

Treehouse motel and treehouse-building school.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This expansive bridge in the Canadian wilderness was originally just built for friends.