Beneath unsuspecting visitors feet, a capsule containing pieces of America’s civil rights history.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

D.C. once had its own tiny rival to the New York Stock Exchange.

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

Not all airplanes are found in hangars or on runways, but this wayward fuselage seems out of place in its odd rural resting place.

Dedicated to a colonial woman who was hanged for being a Quaker.

Created by a local artist, these quirky sculptures each have their own names and personalities.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

One of the last remaining movie theatres in the country that features a rear-projection system.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

A memorial to a shareholder activist feared by CEOs around the United States.

A haunting tribute to pioneering photographer Clover Adams.

The house where Lincoln drafted the Emancipation Proclamation.

A small brick parlor house and artist's studio located in the wilderness is surrounded by imposing suburban palaces.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

Monasteries on rock pillars, once accessible only by frayed ropes.

The oldest-known example of a historic architectural style recognized by UNESCO.

Southern Italy's spinning top village.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

People escaping slavery may have hidden inside a corpse vault.

This small hilltop church weaves the urban history of Washington, D.C. with the national history of the United States.

One of the first Second Empire-style buildings constructed in North America.