Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

An early life spent in this "Old Kentucky Home" inspired the writings of North Carolina's most famous novelist.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

This ancient Egyptian obelisk still bears the wounds of World War I.

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

Built in 1931, this small passageway is believed to be the first modern skyway.

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

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

A Building for Your (Former) Funerary Needs.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

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.

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

When flour explodes, it's not a pretty sight.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This sweet Southern elixir comes from what may be the oldest grape vine in North America.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

More than a millennium's worth of municipal records preserve the political history of Austria.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

The solemn exterior conceals an opulent interior of this 17th century church.

The first modernist church in Europe.