The unusual sculptures are believed to be powerful political symbols.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

A misnamed well, with a deep dark past.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

Sofia's legislative center is continuously reinventing itself.

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A Texas museum filled with Broncos and Betties.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

This downtown Dallas art installation is always on the lookout.

The world’s largest concentrated solar plant generates as many problems as megawatts.

Formerly frequented by Hollywood stars and now open for tours.

An idyllic traditional timber village on a picturesque hill was built for a film.

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

Enter this small nook and you'll be surrounded by 360 degrees of street art.

Over a thousand musical instruments are on display, from bagpipes and harpsichords to drums and the sinuous serpent.

This contorting sculpture is the tallest in San Francisco.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.