A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

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

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The fifth-longest natural arch in the world, and the longest outside China.

Decades before the scandal, this staircase on the river was a literal "water gate."

The oldest continuously operating fish market in the United States.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This historic graveyard was partially paved over to create a streetcar line.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

This mundane post marks the old location of the city's main postal hub.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

This nine-story building is the oldest standing skyscraper in D.C.

A line of blue paint marks the route of the inaugural parade.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

This mysterious and unique painting is filled with symbolism.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.