This rural water utility building houses a tribute to one of the greatest stars of the silent film era.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

An obelisk commemorating Lincoln's role in connecting the coasts.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

This once rural mansion now sits in the heart of the city.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

An exhibition devoted to the life (and posthumous taxidermy form) of the last known representative of the Pinta Island Tortoises.

Home to Hollywood history and a very special salt crystal.

An exotic wildlife habitat right off The Strip.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

A half-size replica of the World Trade Center towers above Tulsa.

One of the best examples of Art Deco architecture in the United States.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

These massive mitts are made of 30 tons of devotional bronze.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

Outstanding, eerie frescoes and decorations fill this 19th-century monastery.

An homage to the medieval rulers of Bulgaria.

A decaying, yet still functioning, work of communist architecture.