Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

A small but immensely extravagant palace built by the "Night King."

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Stairs often replace streets on the steep slopes of this old mining town.

The seat of Buffalo government is a gorgeous Art Deco palace.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The world's longest known cave system.

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

A miniature city, once ruled by the Queen of the Netherlands.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

This historic train station has been converted to a locomotive themed hotel.

Elevated freight railway turned wildly successful urban park.