St George's Hall in Liverpool, England, lit up in yellow and blue in support of Ukraine following Russia's invasion.Peter Byrne/PA Images via Getty Images
- Monuments around the world are lit up in Ukrainian flag colors following Russia's invasion.
- Berlin's Brandenburg Gate and Rome's Colosseum, among other landmarks, displayed blue and yellow lights.
On Thursday, demonstrators held Ukrainian flags in front of the Colosseum in Rome, which also had a Ukrainian flag projected onto it.
The Colosseum in Rome, Italy. Baris Seckin/Anadolu Agency via Getty Images
In Toronto's Nathan Phillips Square, the "Toronto" sign next to the skating rink features blue and yellow letters.
Nathan Phillips Square in Toronto, Canada. Steve Russell/Toronto Star via Getty Images
Some skaters also wore Ukrainian flags as capes as they glided over the ice.
The Mole Antonelliana in Turin, Italy, glowed in blue and yellow Thursday night.
The Mole Antonelliana in Turin, Italy. Nicolò Campo/LightRocket via Getty Images
Landmarks around the UK, such as London's Foreign Office building, joined in expressing solidarity with Ukraine with blue and yellow lights.
The Foreign Office building. Kirsty O'Connor/PA Images via Getty Images
The Foreign, Commonwealth, and Development Office (FCDO) building on King Charles Street was completed in 1868.
In London, Downing Street was illuminated by blue and yellow lights.
Downing Street in London, England. Wiktor Szymanowicz/Future Publishing via Getty Images
The SIS Building, also known as the MI6 building, in London featured a blue and yellow lighting display.
The SIS Building in London, UK. Kirsty O'Connor/PA Images via Getty Images
The SIS Building houses the UK's foreign intelligence agency, the Secret Intelligence Service.
In Liverpool, England, St George's Hall's colorful lights made for a striking image.
St George's Hall in Liverpool, UK. Peter Byrne/PA Images via Getty Images
St George's Hall opened in 1854 and was reopened by Prince Charles after restorations in 2007.
A small group gathered at Sarajevo City Hall in Bosnia to demonstrate in support of Ukraine.
Sarajevo City Hall in Bosnia. ELVIS BARUKCIC/AFP via Getty Images
A banner projected onto the building read, "Solidarity with the people of Ukraine."
Crowds also gathered at the Brandenburg Gate in Berlin, Germany, in solidarity.
The Brandenburg Gate in Berlin, Germany. Paul Zinken/picture alliance via Getty Images
After the reunification of Germany in 1989, the Bradenburg Gate became a symbol of unity.
Flinders Street Station in Melbourne, Australia, also featured blue and yellow lights on Thursday.
Flinders Street Station in Melbourne, Australia. ASANKA BRENDON RATNAYAKE/AFP via Getty Images
Flinders Street Station is located in Melbourne's central business district.
Poland's Palace of Culture and Science in Warsaw lit up with the national colors of Ukraine.
The Palace of Culture and Science in Warsaw, Poland. Maciej Luczniewski/NurPhoto via Getty Images
President Andrzej Duda of Poland condemned Russia's invasion of Ukraine.
"Despite the efforts of the international community, Ukraine has fallen victim to a brutal, unprovoked and unjustified Russian attack," he wrote on Twitter. "We are working together with our allies from NATO and the EU. We will jointly respond to Russia's brutal aggression and will not leave Ukraine without support."