Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Frank Lloyd Wright died a year before construction on his largest public project even began.

340 bicycles, 65 feet high.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

Commonly referred to as the most photographed Victorian home in the United States.

A collection of colorful dinosaurs hidden in an actual rainforest.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

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

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

This unassuming passageway played a key role in one of the most important events in U.S. history.

This Masonic lodge was the first major private building to be constructed in Washington, D.C. after the Civil War.

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

A much-maligned monument to teetotalism.

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

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A glimpse of the Pacific Northwest‘s indigenous culture in Washington, D.C.

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.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”