This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A symbol of friendship between the mountainous regions of Switzerland and Bhutan.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

The premier place to experience the Victorian imagining of the steam-powered future.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

An ever-changing gathering of crude wooden figures haunts the St. Lawrence River.

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

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

The explorer Captain Cook may have named it White Island, but the Maori call it Te Puia o Whakaari – The Dramatic Volcano.

Elevated freight railway turned wildly successful urban park.

A beautiful geyser under environmental threat.

A little sculpture with a large wardrobe.

Famously misunderstood wonder of the ancient world

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

The world's smallest drawbridge.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.