This beautiful building in the heart of Manhattan's Financial District was empty for decades.

The 28-foot granite map plots the locations of 40 theaters in New York City.

Elevated freight railway turned wildly successful urban park.

With a history dating back to Victorian times, this architectural gem is a rare New York tourist haunt worth visiting.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

It's a repurposed treasure trove of history, located just an hour away from Acadia National Park.

Since 1956, this quintessentially New England seafood shack has been boiling its lobsters in seawater over wood fires.

The oldest covered railroad bridge still standing in the United States.

The world's largest piece of copyrighted artwork.

The homestead of American patriot John Adams.

This small shop walked so America could run on Dunkin'.

This mill played a key role in the region’s development and it is just one of ten along the east coast of the United States.

The world's only surviving heavy cruiser has a haunting history.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

Dine on dumplings at the oldest dim sum restaurant in New York.

Avoid gangster interaction while window-shopping.

A failed utopia, shut down by a more legitimate nation.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

This lone survivor of a regional franchise still slings delicious burgers and colossal servings of fries.

As its grandiose name implies, this wooden dome is unsurpassed in size.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Legs Inn provides Polish food, a cornucopia of Odawa artwork, wood carvings, and mounted deer heads.

Oldest building in California still in use.