The oldest stone house in Paris was built by its most famous alchemist.

Stroll through a wonderland of stupendous moss-covered trees.

The United States Capitol's former columns still stand.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Hollowed out cedar log tubs set in an ancient towering forest.

An Aztec snake god has taken the material form of an apartment complex.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Abandoned railway line circling the city of Paris.

Ruins of a German Castle on top of a towering stone pillar.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The atmospheric road was never meant to be so creepy.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This abandoned amusement park was built on a site with a dark history.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

America's most famous piece of self-built architecture.

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

This structure among the trees was the result of divine inspiration.

A giant Troll lurks under one of Seattle's oldest bridges.