Stroll through a wonderland of stupendous moss-covered trees.

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

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Enormous lake at the bottom of a unique cave system.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A crumbling hospital from the 1850s on Roosevelt Island.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

After years of being casually peed on by humans, this tree is peeing back.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A strange rock formation with numerous legends trying to explain it.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.