In 1927, a biplane disappeared while attempting to complete the first non-stop transatlantic flight between Paris and New York City. This memorial stands at the last place it was seen.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This rustic old building is said to be the most photographed barn in America.

A fully functional, commercial, miniature art gallery.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

These small, triangular, colorful houses are a staple of Madeira Island.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

This century-old site established by King Mwezi Gisabo preserves the art of Burundi's ancient drum rituals.

For millennia, explorers were obsessed with discovering the source of the Nile—is this small mountain stream really the answer?

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

A collection of old neon signs from all over Poland line a secluded courtyard.

The silly symbol for an underground protest group is now scattered around the city.

Relive a Polish uprising via an enormous, century-old cyclorama.

A striking public sculpture representing the period of martial law in Communist Poland.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

Boats must transform into railroad cars to navigate this Polish canal.

In northeastern Poland, the ruins of a massive granary overlook the Narew River.