A colorful ice castle is seen during the International Ice and Snow Festival in Harbin, China, Jan. 6, 2016.

Newly-wed couples attend their group wedding ceremony which was held as part of the International Ice and Snow Festival in Harbin, China, Jan. 6, 2016.

Night view of ice sculptures during the 32nd Harbin International Ice and Snow Festival in Harbin, China, Jan. 5, 2016. In China's coolest annual tradition, Harbin has been transformed once again, for the 32nd time, into a magical winter wonderland for the world-famous International Ice and Snow Festival. The event opened to the public on Tuesday (5 January 2016) and will run until the end of February.

A horse made of ice is on display during the 32nd Harbin International Ice and Snow Festival in Harbin , China, Jan. 5, 2016. In China's coolest annual tradition, Harbin has been transformed once again, for the 32nd time, into a magical winter wonderland for the world-famous International Ice and Snow Festival. The event opened to the public on Tuesday (5 January 2016) and will run until the end of February.

The 32nd annual Ice and Snow Festival begins in Harbin, China, Jan. 5, 2016.

Ice sculptures are illuminated by lights on the opening day of the Harbin International Ice and Snow Festival in Harbin, China, Jan. 5, 2016.

People visit ice sculptures on the opening day of the Harbin International Ice and Snow Festival in Harbin, China, Jan. 5, 2016.

People visit snow sculptures at the 32nd Harbin International Ice and Snow Festival in Harbin, China on Jan. 5 2016. The festival is open from Jan. 5 till Feb. 5, 2016, and is aimed at attracting both foreign and local visitors to experience the beauty of the ice and snow.

Visitors walk in front of a massive snow castle sculpture at the Harbin International Ice and Snow Festival held in the city of Harbin, located in China's northern Heilongjiang province, Jan. 5, 2016.

People visit snow and ice sculptures at the Harbin International Ice and Snow Festival in Harbin, China on Jan. 5, 2016.

Entertainers in cartoon character costumes perform a dance in front of a snow sculpture at the Harbin International Ice and Snow Festival, in Harbin, China on Jan. 5, 2016.

Visitors take a selfie in front of a snow sculpture at the Harbin International Ice and Snow Festival, in Harbin, China, Jan. 5, 2016.

Visitors view the ice sculptures at Harbin Ice and Snow Festival in Harbin City, China, Jan. 4, 2016.

A family drives a sleigh on the frozen Songhua River beside the Harbin International Ice and Snow Festival in Harbin, China, Jan. 3, 2016.

A general view showing large ice sculptures at Harbin Ice and Snow Festival, one day before the opening in Harbin City, China, Jan. 4, 2016.

People dress up in animal costumes at the Harbin International Ice and Snow Sculpture Festival, Jan. 1, 2016, in Harbin, China.

Vendors selling candied haws wait for customers at the Harbin Ice and Snow Festival in Harbin, China, Jan. 4, 2016.

A man takes a photo in front of ice sculptures at the Harbin Ice and Snow Festival in Harbin, China, Jan. 4, 2016.

A woman rides a sleigh before the opening ceremony of the Harbin International Ice and Snow Festival in Harbin, China on Jan. 4, 2016.

Tourists visit the Harbin International Ice and Snow Sculpture Festival, Jan. 1, 2016, in Harbin, China.

A worker polishes an ice sculpture ahead of the Harbin International Ice and Snow Festival in Harbin, China, Jan. 4, 2016.

People wait in line at the Harbin Ice and Snow Festival in Harbin, China, Jan. 4, 2016. Over one million visitors are expected to attend the festival.

Workers polish an ice sculpture while preparing for the Harbin International Ice and Snow Festival in Harbin, China, Jan. 4, 2016.

A vendor yawns as he waits for customers on the frozen Songhua River beside the Harbin International Ice and Snow Festival in Harbin, China, Jan. 3, 2016.

A horse stands in front of ice sculptures at the Harbin International Ice and Snow Festival in Harbin, China, Jan. 4, 2016.

A worker polishes an ice sculpture ahead of the Harbin International Ice and Snow Festival in Harbin, China, Jan 4, 2016.