Escalators

thumb|Escalator in a Centrum Nauki Kopernik metro station|metro station in [[Warsaw]] thumb|Rows of escalators at the World Trade Center in Dubai thumb|thumbtime=3|Fujitec escalator in action, 2020 thumb|Escalator maintenance test run thumb|upright|Escalators at the Christ the Redeemer (statue)|Christ the Redeemer statue in [[Rio de Janeiro, Brazil]]

covered escalator system in Hong Kong

powered mechanical system for moving bicycles uphill