Concerned residents saved this historic house and garden from demolition.

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

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

A historic arena where the Beatles played their first concert in the U.S.

Where you can hail your favorite fictional commanders-in-chief.

A nostalgic bibliographic gem.

This groundbreaking 16th-century map is known as "America's birth certificate."

The National Park Service’s best-kept secret with views that rival any in D.C.

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

A haunting tribute to pioneering photographer Clover Adams.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

A controversial magical figure is hidden within a diorama of the city.

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

Here be dragons.

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

This morbid scene depicts the Darwinian drama of death on the African savannah.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

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

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A spectacular tribute to statesman and philanthropist Andrew Mellon.