Lit in blue, white, and red at sundown, the Eiffel Tower reopens after three days following the wave of terrorist attacks in Paris.

The city's motto, 'Fluctuat nec mergitur' or 'Tossed but not sunk' was also projected onto the 300-meter monument for three days which will make it visible across the French Capital.

Aside from the iconic structure, a number of tourist attractions in Paris were closed in respect to the announced three days of national mourning for the victims of the attacks. Disneyland Paris, The Louvre, national monuments and many retail outlets were also close for the weekend following the attacks.

Delayed for 3 ½ hours for additional security sweeps, the 116-year-old symbol of Paris reopened Monday at 4:20 pm with visitors waiting in line. Culture Minister of France Fleur Pellerin announced that museums and concert halls were permitted to open from 1:00 pm on Monday following the weekend of the attacks.

France's most iconic structure is normally visited by 15,000 to 20,000 tourists a day. Also lit in blue, white, and red are other iconic landmarks all over the world, including The Sydney Opera House, Christ the Redeemer statue in Rio de Janeiro, Brandenburg Gate in Berlin and the One World Trade Centre in New York.

Aside from the iconic landmarks, support was also seen online with the hashtag #PrayforParis as well as changing profile pictures with the colors of France on Facebook.

Shortly after the incident, heads of states have condemned the terrorism attacks and expressed their support for Paris. In an address at the White House, Obama said, 'It's an attack not just on the people of France. But this is an attack on all of humanity and the universal values we share. We're going to do whatever it takes to work with the French people and with nations around the world to bring these terrorists to justice and to go after any terrorist networks that go after our people.'

The horrific terrorist attacks on Paris killed 129 people with a total of 19 nationalities. Additional measures to ensure everyone's safety have been added in the tourist landmarks, airports, trains and bus stations, and all over Paris.