A beloved horticultural oasis on the grounds of a wealthy family's former estate.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

A beautiful geyser under environmental threat.

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.

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

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

The most photographed house in Maine looks good enough to eat.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

A unique sculpture park that specializes in the huge and bizarre.

A local prank turned town icon.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Divinely-inspired village houses 6,000 dolls, plus strange and lovely outsider art.

A mailbox that saved a nature reserve.

An Inca spa, military outpost or maybe… both?

Megachurch turned Catholic church comprised of 10,000 glass panes.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The Great Fire of London and the regulation of one-way streets both started in this alley.