Where layer cakes tower above one’s head and there is never a shortage of icing.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The only castle in North America to ever house European sovereigns.

Frida Kahlo's childhood home, now a museum of her life and works.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

This stately clubhouse has showcased German-American culture for over a century.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

Scattered around Atlanta are little doors with big charm.

During World War II the Thorp building was guarded by the OSS, FBI, and US Navy because of the top-secret bombsight being produced there.

This old residential building was once the largest flour mill in the world.

One of two giant blue cockerel statues erected with an intentional double meaning.

1887 era Russian Orthodox church in Minneapolis.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

This iconic water tower and failed bandstand is open for panoramic views once a year.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

The only arched bridge made of stone on the entire Mississippi River.

Hub of Scandinavian culture in a Minneapolis deli.