The first American department store, and home to the largest operating musical instrument in the world.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Alexander Hamilton’s creation caused quite a bit of controversy.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

This national landmark is also home to a massive treehouse.

The basement bowling alley of this St. Paul dive bar is decorated with thousands of dollar bills.

An unusual assortment of art, furniture, and other curiosities.

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

An underappreciated sculpture garden just a few blocks from the capitol building.

Each of these 87 large stones has a unique message. Together, they form part of the Minnesota Military Family Tribute.

This plaque marks the spot where the first crossing guards helped get kids safely to school.

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 double-arched masonry highway bridge is the only structure of its kind in Minnesota.

Triangular House built on a leafy residential street in St. Paul.

A piece of solitude and tranquility in the heart of East Saint Paul.

Where the notorious gang lived while on the run from the FBI.

This garden is dedicated to a Portland cartoonist who specialized in dark humor.

A mile-long audio-guided walking tour preserves an iconic era of Portland soul music.

This sky-high radio mast is formerly the tallest man-made structure in the world.