MILWAUKEE (CBS 58) -- The annual train show is back at the Mitchell Park Domes in Milwaukee. This year's theme is Modern Wonders in the Dome. There are 3D models of the Taj Mahal in India, the Chichen Itza in Mexico and the Colosseum in Italy. Each of them is brought to life with the landscape, plants and flowers around it. 

"Flowers and colors that you would actually see in Mexico. I used four different kinds of pansies, two different kinds of petunias," said Emily Lambrecht, a horticulturist at the domes. "And then also we have the two agaves because Mexico is known for its tequila." 

The Great Wall of China features cherry blossoms and bamboo shoots. 

There are four trains rolling through the Show Dome now through March 22. There will be other train-themed events happening throughout the show. That includes the "All Scale Train Show" that will take over the lobby and greenhouse 7 on Saturday, Jan. 31 and Sunday, Feb. 1.