This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

North America's largest accredited model railroad museum.

What began as a prominent Burning Man art piece is now an iconic symbol of downtown Reno.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The "lovely red Vega" of the legendary record-settling pilot.

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

A super-sized promotional trick that is now a D.C. landmark.

The oldest continuously operating fish market in the United States.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The United States Capitol's former columns still stand.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

An ancient knight and a symbol of the city's freedom.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This enchanting green space houses a labyrinth lined with toxic plants.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

Building owners can take out tiles for free at this repository for historic building materials.