noun, used as a suffix, noun
top hundred; hundred best
Used as a suffix or noun to denote a curated collection of the 100 best or most notable items, often in titles like 日本百選.
このガイドブックには、日本百選の温泉が紹介されている。
This guidebook introduces the top 100 hot springs in Japan.
彼の写真集は、世界の絶景百選を集めたものだ。
His photo book is a collection of the world's top 100 scenic views.
名選 means 'excellent selection' without specifying a number, while 百選 specifically refers to a selection of 100 items.
Compound of 百 (hundred) and 選 (selection).