Canada 2000, Niagara Falls.
Canada 2000, Niagara Falls (self-adhesive).
USA 2001, 100th Anniversary Pan American Exposition, Buffalo.
The illustration of the sheet is showing the Niagara Falls.
Canada 2003 Niagara Falls.
The stamp was issued in the booklet "Tourist Attractions".
Serbia 2006, Nikola Tesla & the Niagara Falls in the background.
Marshall Islands 2006, Niagara Falls.
"Washingten 2006 World Philatelic Exhibition".
(The equal pictures have been issued as stamps by the United States of America in the year 1922)
The stamp was issued in the series "Reprise of United States".
Uganda 2006, Niagara Falls.
Canada 2009, Niagara Falls.
USA 2014, Niagara Falls.
Painting of Thomas Cole (1801-1848).
The stamp was issued in the series "Hudson River School’s paintings".
Grenada Grenadines 2016, Niagara Falls.
The miniaturesheet was issued in the series "Waterfalls of the World".