This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

An allegedly cursed tree represents a town's reckoning with a racist past.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A unique sculpture park that specializes in the huge and bizarre.

A massive Montreal stadium that has seen nothing but trouble since its inception.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

The United States Capitol's former columns still stand.

A super-sized promotional trick that is now a D.C. landmark.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

An astounding collection of medical specimens, including bits of President Lincoln.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Built in 1945, this historic train station has a new lease on life with its baggage area serving as an event space.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

255 feet of suds, scrubbers, and blow dryers.