USA
The USA route: 3 regions, 12 landmarks. Every landmark is built in three stages.
New York
Route steps 1–12
Statue of Liberty
Stage 1 
Stage 2 
Stage 3 A gift from France in 1886, the statue was shiny copper-brown at first. The copper slowly turned green in the air. Source: Wikipedia
Empire State Building
Stage 1 
Stage 2 
Stage 3 The 102-storey building went up in 1930 to 1931 and stayed the world's tallest building for nearly 40 years. Source: Wikipedia
Brooklyn Bridge
Stage 1 
Stage 2 
Stage 3 Opened on 24 May 1883, it was the first fixed crossing of the East River. It hangs from steel-wire cables. Source: Wikipedia
Central Park
Stage 1 
Stage 2 
Stage 3 Central Park covers 341 hectares. It is the most visited city park in the USA, with 42 million visitors in 2016. Source: Wikipedia
Washington, D.C.
Route steps 13–24
Lincoln Memorial
Stage 1 
Stage 2 
Stage 3 The memorial is ringed by 36 columns, one for each of the 36 states in the country when Lincoln died. Source: Wikipedia
Washington Monument
Stage 1 
Stage 2 
Stage 3 This 169-metre obelisk was the world's tallest structure from 1884 to 1889, until the Eiffel Tower passed it. Source: Wikipedia
Jefferson Memorial
Stage 1 
Stage 2 
Stage 3 Built from 1939 to 1943, the memorial was inspired by Rome's Pantheon. Its bronze statue of Jefferson was added in 1947. Source: Wikipedia
Tidal Basin Cherry Blossoms
Stage 1 
Stage 2 
Stage 3 The first 3,020 cherry trees here were a gift sent from the city of Tokyo to Washington in 1912. Source: Wikipedia
Natural Wonders
Route steps 25–36
Niagara Falls
Stage 1 
Stage 2 
Stage 3 Niagara Falls is really three waterfalls. The biggest, Horseshoe Falls, sits right on the border of the USA and Canada. Source: Wikipedia
Yellowstone Geyser
Stage 1 
Stage 2 
Stage 3 Yellowstone's Old Faithful geyser is very regular: it erupts about every 92 minutes on average. Source: Wikipedia
Yosemite's Half Dome
Stage 1 
Stage 2 
Stage 3 Half Dome rises over 2,680 metres above sea level. Hikers climb the last stretch holding on to two steel cables. Source: Wikipedia
Giant Sequoias
Stage 1 
Stage 2 
Stage 3 The giant sequoia called General Sherman is the largest known tree on Earth by volume. It is about 84 metres tall. Source: Wikipedia