Places Gray Wants to Go

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

A lush green oasis in the middle of Chicago.

Quite simply the largest tree in the world (by volume).

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A modernist landscape of water and sci-fi concrete.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Giant busts of 42 U.S. presidents sit, crumbling in a field in Virginia.

World-famous, Pink's still manages to keep its prized cult fetish status.

The world's longest known cave system.

The magic's in the hole!

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

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Take a drunken tour inside the world's largest known geode.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A room in New York City that contains 250 cubic yards of dirt.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

This lab's maddening silence is good for business but bad for sanity.

One person’s lost luggage is another person’s treasure.

Rainbow-hued local gem in Venice.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.