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

"The Most Boring Road in the State."

Large one-man sculpture park in Michigan.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

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

One of Philadelphia's largest murals resides hidden under this bridge.

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.

This beloved marketplace mascot poops money and grants good luck.

The oldest surviving botanic garden in the United States.

This elaborate towering structure was once famed for its revolutionary height.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A celebrity from the late Cretaceous period.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

This pharmacist and his patient greet visitors to the National Community Pharmacists Association.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

A historic ruin just 20 feet away from a busy highway onramp.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.