A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

It's common to find the famous science communicator's grave adorned with pale blue marbles.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

A carriage house converted into what resembles an 11th-century English manor house

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

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.

Yo, Adrian!

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

One of the earliest graveyards in the region.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

The headquarters of the famous Yale society.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Three gardens with toilets and urinals filled with bright flowers started as a protest against zoning rules.

A giant roll of mints marks the birthplace of one of America's most famous candy brands.

An enormous, inside-out glass globe built in 1935.

This impressive Boston holy house is the American mecca for Christian scientists.

The Boston square dedicated to the dark poet who was born nearby.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Statue commemorating the use of ether in anesthesia.

An interesting look into 18th-century American history.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.