The Grand Canyon of Texas.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A serene temple with stunning stained glass hides in downtown Dallas.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

Baptisms in troughs and post-sermon rodeos at the world's biggest cowboy church.

The world's tallest statue of an American hero.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A striking symbol of the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

Eastern Bloc nostalgia, anybody?

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

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

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

Ghost town with a beer-drinking goat for mayor.

This downtown Dallas art installation is always on the lookout.

A modernist landscape of water and sci-fi concrete.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.