Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This playground sculpture of an icon from the past is dedicated to the children of the future.

The decorations were inspired by an unlikely missing treasure.

This oddity shop contains everything from antique tools to a human skeleton.

The mayor made the declaration in 2004.

A classic carnival ride that was carved to be untouchable.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This towering wooden Sasquatch was carved with a chainsaw.

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

The world's largest collection of the world's largest objects is in one small Illinois town.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

This Cleveland mansion has played host to a German singing group, a Prohibition-era speakeasy, a funeral parlor, and many civil rights meetings.

But did the famous feminist and abolitionist ever really say those iconic four words?

This massive airship factory is so large that it has its own indoor weather.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The only presidential monument to display a late POTUS's actual casket.

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

Unique collection containing a wide and curious range of contraceptive items.

Medical history museum featuring a lovely doctor's office from the 1800s.