The /r/place Atlas

Romanian Heart 2

One of three hearts with the Romanian flag.

Turkish Flag

Flag of the Czech Republic

Day[9]TV Logo

Sean "Day[9]" Plott is a video game streamer, commentator and former StarCraft player. The logo was vandalized to read "Day[3]TV" at the last second.

Clash Royale Princess

A legendary card in the mobile game Clash Royale

대한민국

대한민국 (pronounced DaeHanMinGook) is the Korean name of the Republic of Korea (South Korea)

Major League Soccer

The logo for Major League Soccer, the highest tier league for soccer in the United States and Canada. Vandalised to say "MLG", referring to Major League Gaming.

Bunnings Snags

The logo for Bunnings Warehouse, Australia's largest home hardware store franchise. 'Snags' is an Australian colloquialism for sausages, so this logo refers to the weekly sausage sizzles held on all Bunnings premises.

MOI GUYS

"Moi guys" is the catch-phrase of JHZER, a professional Rocket League player and popular YouTube personality.

Pikachu

Icon for Pikachu (a Pokémon) in the Nintendo 64 Super Smash Bros. This icon depicts one of Pikachu's alternate costumes, where Pikachu is wearing a blue party hat.

Tiny Rick

Tiny Rick is a younger version of Rick from the television series Rick and Morty

Zergling

A StarCraft Zergling in the style of Carbon Animation

Kirby

Sprite of Kirby from the Kirby series for many Nintendo systems.

Moondye7 Logo

The Logo of Moondye7, a german Youtuber and Twitch Streamer.

Dwarf in Honour of the war with Indonesia

This Dwarf was created to honour the war between /r/indonesia and /r/dwarffortress

Lipstick Lesbian pride flag

Part of a lipstick lesbian flag at the end of the row of pride flags. While there seems to be no one dominant design for this identity, this is the version most often seen on Reddit and Wikipedia.

Little Yak

What remains of the 4th attempt of the Faeria subreddit to establish a small yak on /r/place. It had almost been completed before r/place finally shut down for good.

Sweden Norway Union Mark

The union mark of the Swedish-Norwegian union Placed inside a heart.

The Flash

Emblem of the fictional superhero The Flash, appearing in comic books published by DC Comics.

Kurdistan Heart

Heart-shaped Kurdish flag

Flag of Brittany

Bretagne in french, Breizh (BZH) in breton, is a region of France.

Flag of Canada

Bard

This is Bard, one of the champions in League of Legends, who was released in 2015, soon became popular among support players.

Flag of New Mexico

The flag of New Mexico, US. It consists of the Zia Symbol and a yellow background.

Bosnia and Herzegovina

A heart with the flag of Bosnia and Herzegovina.

VOC logo

De Vereenigde Oost-Indische Compagnie is a from origin Dutch corporation and one of the greatest in history.

Remnants of Minor Void

One of the last areas of the void, which largely targeted the nearby trans flag and the spiral in the area.

r/spc

SPC = St. Petersburg College, is a state college in Pinellas County, Florida.

Mini flag of Estonia

Macintosh Pinwheel

Also known as the pinwheel of death, this is spinning icon used on MacOS
when processing.

Red Boxes

The last remains of a smaller, pattern-based project that placed red boxes on the canvas.

Mexico-Robin Heart

In response to the void's invasion of Mexico's territory, a number of surrounding factions worked with Mexico to push them back. One of these, Robin, formed an alliance with Mexico afterwards, and this heart was created to symbolise that. The bottom of the heart depicts the Flag of Mexico, and the top depicts the three colours of the vote buttons in Robin.

Romania

Making sure everyone knows which flag was depicted.

Muse Black Holes & Revelations Cover

The album cover of Muses fourth album, Black Holes & Revelations, which is partly obstructed by the rainbow road

American Flag Banner

A spot of high contention between /r/the_donald and /r/afip (A flag in place).
Eventually settled on "/r/afip | #1 in Moon Landings" for a while.

Dutch Heart

Previously belonging to Poland. Colonized by the Dutch when they realized they didn't have a heart.

NPR

NPR is a non-profit news organization in the United States. The logo was hard fought in the end. After T_D's initial American flag augmentation efforts failed and numerous negotiations fell flat, T_D started to turn on many nearby factions. Mainly (but not exclusively) this spam was about a proposed "wall" at the southern border of the U.S. flag. r/NPR successfully reached out to many other parties and had several informal alliances to keep the logo intact. (the small size of the logo allowed for easy alliances) Though it was a small logo it garnered a lot of resistance (check the final heat-map) but in the end it was unscathed thanks to some well-meaning redditors and very lucky timing in the end.

(Incomplete) Miles "Tails" Prower

Sonic the Hedgehog's best friend and sidekick. Formerly located near The Blue Corner and nearly completed, it was unintentionally erased when The Blue Empire expanded. Reconstruction began in a new location, but r/place unfortunately ended before any significant work could be done.

Bisexual Heart

A heart bearing the bisexual flag

Bomb Item

In the Touhou games, a Bomb Item increases your bomb count. Bombs deal heavy damage to every enemy it touches, in addition to cancelling out any bullets in the bomb's way, as well as automatically collecting every item on screen. The player's character becomes invincible during and for a short time after the bomb's effect wears off.

The Alien

This dude was originally a resident of the Rainbow Grid above, but escaped after the Grid became "hiveminded."

Austria

Flag of Austria with eagle and the words "Austria" and "Oida". "Oida" is a dialectic writing of the german word "Alter" used to colloquially adress others, similar to the english expression "Dude!"

Frank Ocean Bandan

The bandanna synonymous with singer, songwriter, and rapper Frank Ocean. Ocean has been known to collaborate with Kanye West, which is why the bandanna is worn by Kanye's Dropout Bear.

The Hispanic Heart

Symbol of love for the Español language with our beloved letter Ñ

Drugs list

A brief selection of the many hobbies enjoyed by the residents of /r/drugs.

Luxembourg heart

Heart-shaped flag of Luxembourg.

New Zealand

Lazar Kiwi, Red Peak (two of the entries for the New Zealand flag referendum), Tino Rangatiratanga flag (national flag for Māori groups), and Marmite

Junimo, a Slime and a Void Egg

The Purple blob is a Slime, one of the first enemies encountered in the game Stardew Valley. The yellow figure is a junimo, known for their help on the farm once you've finished the Community Center. The void egg can be left by a witch when it flies over a less-than-full Coop in the same game.

Austyn

Name of a friend of reddit user GoldenBoy9999

Flaggy Flag

The official flag of Hello Internet. Don't worry about what other people will tell you, this *is* the official flag, not the stupid nail and gear. #FlaggyFlag