The design of this modernist church was revolutionary when it was constructed in 1942.

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

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

In the hills of southern Indiana is the idyllic studio and museum of legendary artist T.C. Steele.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

This museum explores the history of policing and is also home to a very popular taxidermied duck.

A restored historic movie theater is the perfect place for a regional film archive.

This 1.5 million-gallon water tower inspired Stephen King while he was writing "It."

An unsolved murder victim's grave which may or may not contain her body.

A giant telephone commemorates the last "crank" call ever made in the U.S.

This 90-year-old building is home to possibly the most New Englandy social club in existence.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

A mural of a boy making a phone call connects a southern Maine community to a town in Iraq.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Toy museum in a former tavern is the expression of one man's life pursuit of the aesthetic power of cartoon imagery.

A beautiful, creepy 19th-century castle stands incongruously in rural Vermont.

This small Catskills village has six independent bookstores and more bookshops than restaurants.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

The world's largest Our Lady of Guadalupe statue overlooks this Ohio sanctuary.

Annual Easter display made up of thousands of hand-painted eggs.

The final resting place of one of the most iconic musicians of the '80s.

Moonbows over Kentucky.

Unique tower has outlasted a takeover of the company.

The largest earthwork effigy in the world.