Many types of adverbs (adverbs of manner, adverbs of time etc.) can be used at the end of a sentence to modify a verb, adjective, or other adverb (e.g., ‘you read quietly’).
Adverbial phrases (e.g., ‘at two o’clock’) and adverbial clauses (e.g., ‘wherever I go’) can also be placed at the end of a sentence to modify a preceding clause.