Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery at Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery at Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery at Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery at Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery at Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Samalova Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech Samalova Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Cottage, winter, snow, Kristianov, Jizera (Izera) Mountains, Isergebirge

Czech Cottage, winter, snow, Kristianov, Jizera (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Kristianov, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Cottage Smedava, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech Cottage Smedava, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

Czech Cottage, winter, snow, Jizera Highway, (Izera) Mountains, Isergebirge

The winter scenery with Czech Cottage in Jizera Highway, Izera Mountains, Czech Republic, January 11, 2021. (CTK Photo/Marek Spilka)

Temperature inversion, Czech landscape, Korenov, view from observation tower Stepanka, sun set, autumn

Temperature inversion, Czech landscape, Korenov, view from observation tower Stepanka, sun set, autumn

Czech landscape near Korenov (view from observation tower Stepanka) during the temperature inversions and sun set in Czech Republic, November 8, 2020. (CTK Photo/Jiri Castka)

Jested mountain hotel and television tower, winter, autumn, landscape, Liberec, temperature inversion

Jested mountain hotel and television tower, winter, autumn, landscape, Liberec, temperature inversion

Jested mountain hotel and television tower by famous Czechoslovak architect Karel Hubacek pictured during the temperature inversions in Czech Republic, November 8, 2020. (CTK Photo/Jiri Castka)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Cross-country skier is watching stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)

Jizerska padesatka, Ski Classic cross-country race in 50 km

Jizerska padesatka, Ski Classic cross-country race in 50 km

Stadium preparation prior to Jizerska padesatka, Ski Classic cross-country race in 50 km in Bedrichov, Czech Republic, February 6, 2019. (CTK Photo/Radek Petrasek)