The sun shines through autumn foliage of a larch tree at Schlegeis reservoir near the alpine village of Ginzling, Austria October 21, 2018. REUTERS/Lisi Niesner - RC132AE8CCD0

Glastonbury Tor is seen through early morning mist at Glastonbury, Britain, November 2, 2018.

Vehicles drive along the "Yenisei" highway across taiga in autumn foliage in the Krasnoyarsk region, Siberia, Russia, September 29, 2018.

A tourist stands in front of autumn foliage in Pitlochry, Scotland, Britain September 28, 2018.

A squirrel scampers among autumn foliage at the Botanic gardens in Dublin, Ireland October 4, 2018. Picture taken October 4, 2018.

A tourist poses for a souvenir snap in front of autumn foliage in Pitlochry, Scotland, Britain September 28, 2018.

Deer stand in Richmond Park in London, Britain, October 7, 2018.

Autumn colours are seen on foliage in a park in Minsk, Belarus October 9, 2018.

Autumn colours are seen on foliage at the Botanic gardens in Dublin, Ireland October 4, 2018.

Members of the honour guard stand before German Chancellor Angela Merkel's meeting with Chilean President Sebastian Pinera, outside the Chancellery in Berlin, Germany, October 10, 2018.

Autumnal trees of the Tiergarten park are pictured in front of the television tower in Berlin, Germany, October 10, 2018.

A woman sits on a beach enjoying a warm autumn afternoon at the Parc de Milan in Lausanne, Switzerland October 9, 2018.

Autumn colours are seen on foliage in the village of Danilovichi, Belarus October 19, 2018.

A woman takes pictures under ginkgo trees outside Diaoyutai State Guest House on a late autumn day in Beijing, China, November 1, 2018.

Boats are moored in Loch Faskally Pitlochry, Scotland, Britain September 28, 2018. REUTERS/Russell Cheyne - RC1604824E70

A tourist stands in front of autumn foliage on the Blair Athol distillery in Pitlochry, Scotland, Britain September 28, 2018.

A waterfall is pictured on a warm autumn day at the Areuse gorge in Boudry near Neuchatel, Switzerland, October 4, 2018.

Autumn colours are seen on foliage at the Botanic gardens in Dublin, Ireland October 4, 2018.

Autumn colours are seen on foliage in a park in Minsk, Belarus October 8, 2018.

A man stands on a boat as autumn foliage is reflected off Loch Faskally, in Perthshire, Scotland, Britain, October 19, 2018. REUTERS/Russell Cheyne TPX IMAGES OF THE DAY - RC1963053B90

A pumpkins field is seen in Malincourt, France, October 17, 2018.

A fly sits on autumn foliage in Pitlochry, Scotland, Britain September 28, 2018.

An aerial view shows the autumn foliage on the banks of the Yenisei River in the Siberian taiga outside Krasnoyarsk, Russia October 1, 2018.

Larches are pictured in front of the Mont Gond on a warm autumn day near a lake in Derborence, Switzerland, October 25, 2018.

Leaves are pictured on the water on a warm autumn day at the Areuse gorge in Boudry near Neuchatel, Switzerland, October 4, 2018.

A man stands on an embankment of the Yenisei River in the Siberian town of Divnogorsk, Russia September 20, 2018.

A red deer stands in the early morning mist in Bushy Park in London, Britain, October 10, 2018.

A woman stands on the footbridge over the river Garry near Pitlochry, Scotland, Britain October 10, 2018.

A red wall is covered with creepers on a late autumn day in Beijing, China, November 1, 2018.

Autumn colours are reflected in Loch Faskally, in Pitlochry, Scotland November 1, 2018.

A dog paddles in Loch Faskally in Pitlochry, Scotland, Britain September 28, 2018.

Autumn colours are reflected in the water as gulls dive for food on the Grand Union Canal in Loughborough, Britain October 18, 2018. REUTERS/Darren Staples - RC15DBF00FA0

Swans are reflected in Loch Faskally, in Pitlochry, Scotland November 1, 2018.