Triumphal Arch Near London's Hyde Park
This page is the CodyCross answer for the clue below from Resorts, Group 559, Puzzle 1 (Water Slides).
Question is: Triumphal Arch Near London's Hyde Park
and the answer is: MARBLE
Word Meaning:
MARBLE — (uncountable, petrology) A metamorphic rock of crystalline limestone.
Definitions from Wiktionary.