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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The headquarters of a secretive order is also a beautifully-designed park.

Giant telescope mirrors built in a spinning furnace under a college football stadium.

An overlooked memorial honoring the local Washington residents who died in World War I.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

There’s a hidden military meme engraved on the World War II Memorial.

A bizarre house filled with an astounding array of collections.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

An unusual round church in London with a Templar past.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Bits and pieces from the ill-fated Donner Party's winter cabins.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

Back in the day everyone who was anyone played this historic western theater.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

An eccentric millionaire's personal curio collection includes at least one shrunken head.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

The only surviving prototype of Buckminster Fuller's revolutionary car.