The act or pastime of visiting sights of interest.(noun)
Used or engaged in sightseeing: a sightseeing bus; a sightseeing tour. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sightseeing" in a sentence
"Does it mean that sightseeing is a straight activity?"
"The sightseeing is impressive, including rock formations, plants, and birds."
"The next day was spent in sightseeing around Taipei, visiting many prominent landmarks like the Chiang Kai-shek Memorial, the Lungshan Temple, The Grand Hotel, the National War Memorial and a drive by of the former Taihoku Camp 6 site where Harry and George spent their first months as POWs in Taiwan."