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

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.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

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

Perhaps the most scandalous statue of America's first president.

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

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This taxidermy horse was a Civil War hero.

A much-maligned monument to teetotalism.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

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

This institution pays tribute to an associate justice who protected civil rights and prosecuted Nazis.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

From the Difference Engine to the Cray-1, all under one roof.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Buried beneath an unassuming Gotland farm was the largest collection of Viking silver, mostly of Islamic origin.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.