This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

This iconic fortress was once the crown jewel of Haiti's national defense.

The royal seat of Henri Christophe, a formerly enslaved man who became Haiti's only king.

The first declared National Monument in the United States.

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

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

America's largest viking stands in a Minnesota city that believes it was visited by the ancient nords.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Jesus' footprints and the first catacombs in the world.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

Breathtaking and huge 430 year old maps of Italy.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The yawning maw of this pagan visage is said to bite off the hands of liars.