Manatees congregate around a power plant's discharge canal where the water is especially warm.

The world's largest rotating world.

It's not your typical library, memorial, or book store.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

This large cemetery is known as the museum of granite sculptures.

Cheap art and political theater in Vermont.

The snowbirds here are circus sideshow performers.

Outsider art or homage to aliens?

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

Medieval village and microminiature museum.

A hand-built folk art installation covered with messages of God's love.

Eighteen miniature death-scene dioramas.

One of the world's largest model railroads is a mind-boggling achievement.

Theme park featuring miniature replicas of European monuments.

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

Small, privately owned island divided between Michigan and Ohio with abandoned vacation homes and a derelict lighthouse.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Opulent downtown movie theater now houses cars as an indoor parking garage.

Tucked in the back of this amazing antique store is an important piece of medical history.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."